LEED-Green-Associate LEED Green Associate Exam (LEED GA) Questions and Answers

 LEED for Neighborhood Development (LEED ND) is a rating system that aims to inspire and help create better, more sustainable, well-connected neighborhoods1. It looks beyond the scale of buildings to consider entire communities1. One of the main goals of LEED ND is to reduce vehicle miles traveled (VMT) and greenhouse gas emissions by promoting the location and design of neighborhoods that are accessible by foot or public transportation234. Therefore, LEED ND encourages development within and near existing communities or public transportation infrastructure, which is option C.

References: =

LEED certification for neighborhood development

LEED for Neighborhood Development - Wikipedia

LEED® for Neighborhood Development - Grow Smart RI

LEED for Neighborhood Development - s3.amazonaws.com

Strategically locating functional and decorative hardscape on a project site can reduce the amount of on-site impervious area. Impervious surfaces are surfaces that do not allow water to infiltrate into the ground (e.g., concrete or asphalt). By reducing these surfaces, we can increase water infiltration, which helps recharge groundwater supplies and reduces stormwater runoff that can lead to erosion and water pollution. References: LEED Green Associate Candidate Handbook, U.S. Green Building Council resources

Building orientation is the element of design that can be used to take advantage of natural ventilation, solar energy and daylight. Building orientation refers to the position and direction of a building in relation to the sun, wind, and other environmental factors. By orienting a building properly, it can maximize the benefits of passive design strategies such as daylighting, natural ventilation, and solar energy. For example, a building can be oriented to face the south or north in temperate climates to capture more sunlight for heating and lighting, or to face the east or west in hot climates to avoid excessive solar heat gain and glare. A building can also be oriented to align with the prevailing wind direction to enhance natural ventilation and cooling. Building orientation can also affect the shape, size, and placement of windows, doors, roofs, and other architectural elements that influence the performance and comfort of a building. References: Passive Design Strategies | Sustainability Workshop, section “Building Massing & Orientation”; Back to Basics: Natural Ventilation and its Use in Different Contexts | ArchDaily, section “Orientation”; Courtyard configuration to optimize shading, daylight and ventilation …, section “Introduction”

The intent of waste management in the Materials and Resources credit category is to reduce the amount of waste and toxins hauled to landfills. This can be achieved through strategies such as recycling, composting, reusing materials, and reducing overall material consumption. By reducing waste, we can conserve natural resources, reduce pollution from waste treatment and disposal processes, and decrease the demand for landfill space. References: LEED Green Associate Candidate Handbook, U.S. Green Building Council resources

Open grid pavement, also known as permeable pavement, allows water to drain through it, reducing runoff and recharging groundwater supplies. It also tends to be lighter in color than traditional asphalt, which means it absorbs less heat from sunlight. This helps to reduce the urban heat island effect, which is a phenomenon where urban areas are significantly warmer than their rural surroundings due to human activities. References: LEED Green Associate Candidate Handbook, U.S. Green Building Council resources

The triple bottom line is a business concept that states firms should commit to measuring their social and environmental impact—in addition to their financial performance—rather than solely focusing on generating profit, or the standard “bottom line”1. The triple bottom line can be broken down into “three P’s”: profit, people, and the planet2. Firms can use these categories to conceptualize their environmental responsibility and determine any negative social impacts to which they might be contributing1.

Triple bottom line

 Volatile organic compounds (VOCs) are compounds that have a high vapor pressure and low water solubility, and are emitted as gases from certain solids or liquids1. VOCs include a variety of chemicals, some of which may have short- and long-term adverse health effects2. Concentrations of many VOCs are consistently higher indoors (up to ten times higher) than outdoors2. VOCs are emitted by a wide array of products, such as paints, solvents, cleaners, fuels, pesticides, building materials, office equipment, etc2. Breathing VOCs can irritate the eyes, nose and throat, can cause difficulty breathing and nausea, and can damage the central nervous system and other organs3. Some VOCs can cause cancer3. Therefore, VOCs negatively impact the quality of indoor air, which is option B.

The amount of landfill-destined waste generated during project construction can be reduced by requiring the general contractor to follow requirements for using dimensional construction materials, prefabrication or material efficient framing. These methods reduce the amount of material waste by minimizing cutting, fitting, and trimming on site, and by using standardized or modular components that can be easily reused or recycled. The LEED Green Associate Candidate Handbook states that one of the strategies for achieving materials and resources efficiency is to “reduce construction waste through efficient framing techniques” [1, p. 15]. References: LEED Green Associate Candidate Handbook, [Reducing Construction Waste | U.S. Environmental Protection Agency]

From a LEED perspective, a brownfield site with access to multiple lines of public transportation and basic services would be the most applicable. Brownfield sites are previously developed sites that may be contaminated with hazardous waste or pollution. Developing on these sites can help to clean up and revitalize the area. Access to public transportation reduces the need for private vehicle use, reducing carbon emissions and traffic congestion. References: LEED Green Associate Candidate Handbook, U.S. Green Building Council resources

An owner who wants to update the interior materials of the office while promoting a healthier indoor work environment using LEED strategies can specify low-emitting materials as one of the strategies to achieve this goal. Low-emitting materials are materials that have low or no emissions of volatile organic compounds (VOCs) or other pollutants into the indoor air. VOCs are organic chemicals that can evaporate or vaporize at room temperature and can adversely affect the indoor air quality (IAQ) of a building and the health, comfort, and productivity of the occupants. Some sources of VOCs in buildings are paints, coatings, adhesives, sealants, flooring, furniture, and cleaning products. Specifying low-emitting materials can reduce the exposure and risk of VOCs for the occupants and improve IAQ12. References: LEED v4 Green Associate Candidate Handbook1, LEED v4 BD+C Reference Guide2

An office without transit access can substantially reduce its transportation impact if workers are able to walk from the office to basic services. Transportation impact is the effect of transportation activities on the environment, society, and economy. Transportation impact can include greenhouse gas emissions, air pollution, noise pollution, energy consumption, land use, traffic congestion, infrastructure costs, and public health. Walking is a form of alternative transportation that can reduce transportation impact by using less energy, emitting less pollutants, occupying less space, and improving physical activity and well-being. If workers are able to walk from the office to basic services, such as retail, restaurants, banks, or post offices, they can reduce their vehicle miles traveled, fuel consumption, and parking demand1 . References: LEED v4 Green Associate Candidate Handbook1, EPA’s Transportation and Climate Change

Waste that is transported or diverted to landfills can have negative impacts on the environment, such as occupying valuable land, contaminating soil and water, and emitting harmful gases. One of the most significant impacts is the production of methane, a potent greenhouse gas that contributes to global warming and climate change. Methane is generated when organic waste decomposes anaerobically (without oxygen) in landfills. Methane has a global warming potential 28 times higher than carbon dioxide over a 100-year period12. References: LEED v4 Green Associate Candidate Handbook1, EPA’s Landfill Methane Outreach Program2

Building and material reuse contribute to the sustainability goals of a project by reducing the use of raw materials, which can save energy, water, and natural resources, as well as reduce greenhouse gas emissions, waste generation, and environmental impacts. By reusing existing buildings or materials, project teams can avoid the extraction, processing, transportation, and disposal of new materials, which can have significant environmental and social costs. LEED v4.1 recognizes and rewards multiple strategies for building and material reuse in the Building-Life Cycle Impact Reduction credit1.

An existing LEED certified building located on a college campus is eligible for LEED for Building Operations and Maintenance; Existing Buildings (LEED O+M: EB). This rating system applies to existing buildings that are undergoing improvement work or little to no construction. It focuses on measuring and improving the performance of building operations and maintenance practices in areas such as energy efficiency, water conservation, waste management, indoor environmental quality, transportation, and occupant satisfaction. To be eligible for LEED O+M: EB, a project must meet certain minimum program requirements (MPRs), such as having a reasonable site boundary, being in a permanent location on existing land, being fully operational and occupied for at least one year prior to certification application, and complying with environmental laws and regulations. References: LEED certification for existing buildings and spaces6; Maintaining certification7; LEED v4: Building Operations + Maintenance Guide4

An externality is a consequence of an economic activity that affects other parties who are not directly involved in the activity. Externalities can be positive or negative, depending on whether they create benefits or costs for others. When a developer builds a new shopping center in a rural area, one externality might be an increase in traffic on adjacent roads. This is a negative externality because it imposes costs on other road users who are not part of the development project, such as increased travel time, fuel consumption, air pollution, noise pollution, and accident risk13. References: LEED v4 Green Associate Candidate Handbook1, Investopedia’s Externality

Designers and builders can construct a green building that uses significantly less water than a conventional building by incorporating native plant landscapes. Native plant landscapes are plants that are adapted to the local climate and soil conditions, and require little or no irrigation, fertilization, or pesticides. They also provide habitat for wildlife, reduce stormwater runoff, and enhance the aesthetic value of the site. The LEED Green Associate Candidate Handbook states that one of the intents of the Sustainable Sites category is to “conserve water by using native or adapted plants” [1, p. 13]. References: [LEED Green Associate Candidate Handbook], [Native Plants | U.S. Environmental Protection Agency]

Strategies for improving building occupants’ comfort and control may consist of installing operable windows, giving occupants lighting control and providing ergonomic furniture. These strategies can enhance the indoor environmental quality (IEQ) of a building, which is the physical and psychological conditions of the indoor spaces that affect the health, comfort, and productivity of the occupants. Installing operable windows can allow occupants to adjust the natural ventilation, temperature, and fresh air intake of their spaces. Giving occupants lighting control can allow them to adjust the artificial lighting levels, color, and direction of their spaces. Providing ergonomic furniture can support the physical comfort, posture, and well-being of the occupants12. References: LEED v4 Green Associate Candidate Handbook1, LEED v4 BD+C Reference Guide2

A charrette is a strategy that can help build consensus for a project’s sustainability goals. A charrette is an intensive, collaborative, and creative workshop that brings together the project team and other stakeholders to define the project goals, scope, and strategies. A charrette can help to establish a common vision, identify synergies, and prioritize actions for a green building project. A charrette can also foster communication, trust, and buy-in among the participants13. References: LEED v4 Green Associate Candidate Handbook1, LEED v4 BD+C Reference Guide3

A flush-out is a process that is conducted prior to building occupancy and removes indoor airborne contaminants by thoroughly exhausting old air and replacing it with fresh outdoor air. A flush-out is one of the options for achieving the LEED Indoor Air Quality Assessment credit, which aims to reduce indoor air quality problems resulting from construction or renovation and promote the comfort and well-being of occupants1. A flush-out requires that the building be supplied with a total air volume of 14,000 cubic feet of outdoor air per square foot of gross floor area while maintaining an internal temperature of at least 60°F and no higher than 80°F and relative humidity no higher than 60%. The flush-out can be done before or during occupancy, but the latter option requires a minimum ventilation rate and duration2. A flush-out can help to remove volatile organic compounds (VOCs), particulate matter (PM), and other pollutants that may be emitted from construction materials, finishes, furnishings, and equipment3.

LEED credits are weighted based on their potential environmental impacts and human benefits. Those that most directly address these areas are given greater weight in the scoring system. This approach is intended to prioritize actions that have the greatest positive impact on critical environmental issues such as climate change, water resources, biodiversity, air pollution, and human health. References: LEED Green Associate Candidate Handbook, U.S. Green Building Council resources

The location valuation factor is a concept that applies to several credits under the Materials and Resources credit category in LEED v4. It means that if the purchased products or materials are extracted, manufactured, and purchased within 100 miles (160 kilometers) of the project, LEED will award the project in the credit calculations by valuing those products at 200% of their cost1. This is to incentivize the purchase of products that reduce transportation emissions and environmental impacts associated with long-distance shipping2.

References: 2 LEED v4: Building Design + Construction Guide, Materials and Resources, p. 487-4881 LEED 2009 vs. LEED v4: Regional Materials - LaForce, LLC.

Non-potable water is water that is not suitable for human consumption, but can be used for other purposes that do not require potable quality water. Non-potable water sources include rainwater, reclaimed/recycled water and greywater. Greywater is wastewater from sinks, showers, bathtubs, washing machines and dishwashers that can be reused for applications such as toilet flushing, irrigation and cooling tower make-up water12. Using non-potable water can reduce the demand for potable water and contribute to LEED water efficiency credits34.

References :=

SRI Calculator | LEEDuser

What Is Solar Reflectance Index (SRI) of Materials?

Water Efficiency and LEED Certification | Contractor

Water Balance Analysis - ASHRAE

What is LEED? | Net Zero Water Inc. - Net Zero Water

Utilizing an existing community nature path connecting the building to surrounding buildings is an action that promotes pedestrian access to a project site. Pedestrian access is the ability of people to walk to and from a project site safely and comfortably. A community nature path is a type of pedestrian infrastructure that provides a pleasant and scenic route for walking, as well as environmental benefits such as habitat creation, stormwater management, and heat island reduction. The other options are not actions that promote pedestrian access to a project site. Placing a low speed limit in the parking lot around the building is an action that enhances pedestrian safety within the project site, but does not improve pedestrian access to the project site. Providing shuttle access between the project site and a local transit center is an action that encourages alternative transportation, but does not promote pedestrian access to the project site. Designating parking spaces closest to the building for exclusive use by carpooling vehicles is an action that reduces vehicle trips and emissions, but does not promote pedestrian access to the project site. References: LEED Green Associate Candidate Handbook, page 30; USGBC, [Location & Transportation], page 3.

The discovery phase is the most important phase of the integrative process, as it sets the foundation for the rest of the project. In this phase, the project team conducts a preliminary analysis of the site, building, systems, and occupants to identify the goals, challenges, and opportunities for improving performance and sustainability. The team also engages in an iterative process of exploring design options, evaluating trade-offs, and selecting strategies that optimize multiple benefits across different disciplines and stakeholders. The discovery phase requires a high level of collaboration and communication among the team members and with the client, as well as a holistic and systems thinking approach to problem-solving. References: LEED v4 BD+C Reference Guide, Integrative Process, page 28; LEED v4: Building Design + Construction Guide4

The USGBC member logo may be displayed by an organization that is a member of the USGBC. Membership in the USGBC is organizational, not individual, so the logo represents the organization’s commitment to sustainability and green building practices. References: LEED Green Associate Candidate Handbook, U.S. Green Building Council resources

According to LEED, one of the factors that should be considered when locating a site for a project is the infrastructure context. The infrastructure context refers to the existing physical systems that support a site, such as roads, utilities, transit networks, water supply, wastewater treatment, stormwater management, and waste disposal. Choosing a site that has access to adequate infrastructure can reduce the environmental impacts of developing new infrastructure, such as land disturbance, resource consumption, energy use, emissions, and pollution. The LEED Green Associate Candidate Handbook states that one of the intents of the Location and Transportation category is to “reduce environmental harm from transportation infrastructure” [1, p. 12]. References: LEED Green Associate Candidate Handbook, [Location and Transportation | U.S. Green Building Council]

Daylighting and natural ventilation are strategies that can be used together to save energy and improve occupant experience in a building. Daylighting uses natural light to illuminate the interior spaces of a building, reducing the need for artificial lighting and improving the visual comfort and well-being of the occupants. Natural ventilation uses outdoor air to provide fresh air and cooling to a building, reducing the need for mechanical ventilation and air conditioning and improving the indoor air quality and thermal comfort of the occupants1 . References: LEED v4 Green Associate Candidate Handbook1, LEED v4 BD+C Reference Guide

Increasing density means building more units or floor area on a given site, which reduces the amount of land and resources needed per unit or occupant1. This also creates a smaller footprint and maximizes the floor area ratio (FAR), which is the ratio of the total building floor area to the site area2. Increasing density can help achieve credits in the Location and Transportation category, such as Surrounding Density and Diverse Uses3.

References:

LEED v4: Neighborhood Development Guide | U.S. Green Building Council1

Floor Area Ratio - Planning Department2

LEED v4: Building Design + Construction Guide - U.S. Green Building Council3

Scope 1 greenhouse gas emissions are direct emissions from sources that are owned or controlled by the organization. On-site landfills are an example of a source of Scope 1 emissions, as they release methane and carbon dioxide from the decomposition of organic waste12.

Business travel, purchased electricity, and employee commuting are examples of sources of Scope 2 or Scope 3 emissions, which are indirect emissions from sources that are not owned or controlled by the organization. Business travel and employee commuting are Scope 3 emissions, as they occur from the activities of the organization’s value chain, such as suppliers and customers12. Purchased electricity is a Scope 2 emission, as it occurs from the generation of electricity that the organization consumes

Sustainable forestry is the practice of managing forest resources in a way that meets the current and future needs of humans for forest products, while also conserving and enhancing the ecological, social, and economic values of the forest and its surrounding landscape1. One of the key aspects of sustainable forestry is to maintain the biodiversity of the forest, which refers to the variety and abundance of living organisms, such as plants, animals, fungi, and microorganisms, and their interactions within the forest ecosystem2. Biodiversity is important for the health and resilience of the forest, as it provides essential ecosystem services, such as carbon sequestration, water purification, soil formation, nutrient cycling, pollination, pest control, and climate regulation23. Biodiversity also supports the livelihoods, cultures, and well-being of forest-dependent communities and indigenous peoples23.

References:

What is sustainable forestry?

Why is biodiversity important for forests?

LEED v4 - FSC United States

Low-Impact Development (LID) is an approach to land development that uses various land planning and design practices and technologies to simultaneously conserve and protect natural resource systems and reduce infrastructure costs. LID still allows land to be developed, but in a cost-effective manner that helps mitigate potential environmental impacts. This approach aims to manage rainwater as close to its source as possible, mimicking a site’s pre-development hydrology through the use of numerous site design strategies. References: LEED Green Associate Candidate Handbook, U.S. Green Building Council resources

Light, sound, occupant experience are some of the components that comprise the Indoor Environmental Quality credit category. The Indoor Environmental Quality credit category aims to provide a healthy, comfortable, and productive indoor environment for building occupants by addressing various factors that affect their well-being, such as thermal comfort, lighting quality, acoustic quality, air quality, and occupant control. The LEED Green Associate Candidate Handbook states that one of the intents of the Indoor Environmental Quality category is to “enhance indoor environmental quality (IEQ) by improving the design, construction and operation of buildings” [1, p. 16]. References: LEED Green Associate Candidate Handbook, [Indoor Environmental Quality | U.S. Green Building Council]

The Energy Policy Act (EPACT) of 1992 set standards for indoor water fixtures like toilets and faucets, which are used as a baseline for determining water savings in LEED projects. The 2005 amendment to the EPACT further updated these standards. References: LEED Green Associate Candidate Handbook, U.S. Green Building Council resources

A minimum program requirement for LEED for New Construction and Major Renovations projects is to be a permanent building or space on existing land. This means that the project must be designed and constructed for a fixed location on land that is legally defined and has legal boundaries. The project cannot be a temporary structure, such as a trailer or a tent, or a movable structure, such as a boat or a vehicle. The LEED Green Associate Candidate Handbook states that this is one of the four minimum program requirements that apply to all LEED rating systems [1, p. 9]. References: LEED Green Associate Candidate Handbook, [Minimum Program Requirements | U.S. Green Building Council]

A charrette is an intensive, multi-disciplinary workshop with the aim of developing a design or vision for a project or planning activity. Charrettes are often conducted to design such things as parks and buildings, or to plan communities or transportation systems. A charrette should take place at the beginning of the project, when the design team can engage with all the stakeholders, including the client, users, consultants, contractors, regulators, and community members. A charrette at this stage can help to:

Establish clear goals and objectives for the project

Identify opportunities and constraints for the site and program

Generate creative and innovative ideas and solutions

Foster collaboration and consensus among diverse perspectives

Reduce conflicts and delays during later phases of the project

Enhance communication and trust among the project team

The other options are not appropriate phases for a charrette. Post commissioning is too late to influence the design or planning of the project. During the design process, some decisions may have already been made or some stakeholders may have been excluded. During the construction process, changes may be costly or impractical to implement. References: : Charrette

A neighborhood that includes a diversity of uses is most appropriate to encourage a walkable street design. A diversity of uses means that different types of activities and functions are located within walking distance of each other, such as residential, commercial, retail, educational, recreational, cultural, and civic uses. A diversity of uses creates a vibrant and lively neighborhood that attracts pedestrians and supports social interaction. A walkable street design also incorporates elements such as sidewalks, crosswalks, street trees, lighting, benches, bike lanes, public transit stops, and reduced vehicle speeds to enhance pedestrian safety and comfort. The other options are not appropriate to encourage a walkable street design. An area with a decreased building-height-to-street-width ratio creates a wide and open street that exposes pedestrians to more sun and wind, reducing their comfort level. A development that uses many culs-de-sac in the street design creates a disconnected and irregular street network that limits pedestrian access and mobility. A project in an area designed with streets to facilitate increased speed limits prioritizes vehicle movement over pedestrian safety and comfort. References: LEED Green Associate Candidate Handbook, page 29; USGBC [Location & Transportation], page 2-3.

ASHRAE 62.1 is a standard that ensures adequate ventilation is supplied to building occupants. ASHRAE stands for the American Society of Heating, Refrigerating and Air-Conditioning Engineers, a professional organization that develops standards and guidelines for the design, operation, and maintenance of buildings. ASHRAE 62.1 is a standard that specifies the minimum ventilation rates and other measures for new and existing buildings that are intended to provide acceptable indoor air quality (IAQ) for the occupants. Ventilation is the process of supplying outdoor air to or removing indoor air from a building. Adequate ventilation is important for maintaining good IAQ, which can affect the health, comfort, and productivity of the occupants13. References: LEED v4 Green Associate Candidate Handbook1, ASHRAE’s Standard 62.13

Closed systems are systems that promote the conservation of materials and resources by linking elements in order to form relationships with their function. Closed systems aim to minimize waste, energy loss, and environmental impact by reusing, recycling, or regenerating materials within the system boundaries. Closed systems can be inspired by natural ecosystems, where waste from one process becomes food for another process. An example of a closed system is a building that collects rainwater for irrigation, uses solar panels for electricity, composts organic waste for fertilizer, and recycles greywater for flushing toilets1 . References: LEED v4 Green Associate Candidate Handbook1, Biomimicry Institute’s What is Biomimicry?

The LEED minimum program requirements state that for LEED BD+C and LEED O+M rating systems, the LEED project must include a minimum of 1000 ft2 (93 m2) of gross floor area1.

References:

LEED v4: Building Design + Construction Guide

LEED minimum program requirements

LEED For Building Design And Construction (LEED BD+C) Rating Systems In Details

Covering duct work with plastic is a strategy for improving indoor environmental quality during construction. Covering duct work with plastic prevents dust, debris, and contaminants from entering the ducts and affecting the air quality of the building. This also reduces the need for cleaning and maintenance of the ducts after construction. The LEED Green Associate Candidate Handbook states that one of the strategies for achieving indoor environmental quality is to “protect ducts during construction by sealing or covering with plastic” [1, p. 16]. References: LEED Green Associate Candidate Handbook, [Indoor Air Quality During Construction | U.S. Environmental Protection Agency]

The LEED Pilot Credit Library is a collection of new credits that are being tested for potential inclusion in future versions of LEED1. The purpose of the library is to allow projects to experiment with innovative strategies and provide feedback to USGBC on their effectiveness, feasibility, and market readiness2. The library also helps USGBC to respond to evolving environmental issues and stakeholder needs2.

An infill site within an existing neighborhood with substantial transit connectivity would maximize LEED points under Location and Transportation. An infill site is a site that has been previously developed or graded and is surrounded by existing development. An existing neighborhood is a geographic area with a variety of land uses, such as residential, commercial, educational, or recreational. Substantial transit connectivity means that the site has access to multiple modes of public transportation, such as buses, trains, light rail, or bicycles. The LEED Green Associate Candidate Handbook states that one of the intents of the Location and Transportation category is to “encourage development within existing communities and public transit infrastructure” [1, p. 12]. References: [LEED Green Associate Candidate Handbook], [Location and Transportation | U.S. Green Building Council]

The Facility Manager is typically responsible for monitoring ongoing energy performance over the life of a building. They oversee the operation and maintenance of building systems, including HVAC, lighting, and other energy-using equipment, and can implement energy management strategies to optimize performance. References: LEED Green Associate Candidate Handbook, U.S. Green Building Council resources

The LEED rating systems reference the standards of various organizations that are relevant to green building design, construction, and operation. The National Fire Protection Association (NFPA) is one of these organizations, and its standards cover topics such as fire safety, electrical safety, emergency power systems, and fire suppression systems. The LEED rating systems reference the NFPA standards in several credits and prerequisites, such as Minimum Energy Performance, Minimum Indoor Air Quality Performance, and Environmental Tobacco Smoke Control.

References:

LEED rating system

LEED rating system selection guidance

What is LEED certification?

LEED - Wikipedia

LEED certification is awarded based on the number of points a project earns across several categories of green building performance. The range of points required to achieve the Certified level of certification for the commercial LEED Rating System is 40-49, out of a possible 110 points. The other levels of LEED certification are: Silver (50-59 points), Gold (60-79 points), and Platinum (80 or more points)12. References: LEED v4 Green Associate Candidate Handbook1, LEED v4 BD+C Reference Guide2

Regional priority credits are bonus points that are awarded to projects that achieve credits that address geographically specific environmental, social equity and public health priorities. These credits are not new LEED credits, but instead are existing credits that USGBC regional councils and chapters have designated as being particularly important for their areas. The goal of regional priority credits is to incentivize project teams to address the most critical and relevant environmental issues in their regions, such as water scarcity, air quality, habitat loss, or social equity12. Regional priority credits are based on the project’s geolocation (latitude and longitude coordinates), which can be entered and confirmed during project registration in LEED Online2. Each project can earn up to four regional priority bonus points, one for each regional priority credit achieved3.

A project can earn up to four maximum points under the Regional Priority credit. The Regional Priority credit is a bonus credit that rewards projects for addressing environmental issues that are of regional importance. The USGBC regional councils and chapters have identified six environmental issues for each zip code in the United States, and projects can earn one point for each issue they address, up to a maximum of four points. The other options are not correct. One, two, or three points are possible, but not the maximum number of points under the Regional Priority credit. References: LEED Green Associate Candidate Handbook, page 30; USGBC, [Regional Priority], page 1.

a construction waste management plan is a document that outlines how the project will reduce, reuse, recycle, or dispose of the construction and demolition waste generated on site. One of the key components of a construction waste management plan is to track and document the volume or weight of materials that are diverted from landfills or incinerators by redirecting them to other destinations, such as recycling facilities, salvage yards, donation centers, or reuse on site12.

Tracking and documenting the volume or weight of materials diverted is important for several reasons, such as:

It helps measure the performance and effectiveness of the waste management plan and identify areas for improvement.

It provides evidence and verification for LEED certification, as LEED v4 requires projects to divert at least 50% or 75% of construction and demolition waste (by weight or volume) from disposal in landfills or incineration facilities for one or two points, respectively3.

It demonstrates the environmental and economic benefits of waste diversion, such as reducing greenhouse gas emissions, conserving natural resources, saving disposal costs, and creating jobs12.

The number of dumpsters used is not a relevant metric for tracking a construction waste management plan, as it does not indicate how much waste is generated or diverted. The amount of site soils reused on the site is also not a valid indicator, as site soils are not considered construction and demolition waste by LEED v43. The amount of post-consumer recycled content is not related to a construction waste management plan, as it refers to the percentage of material in a product that was previously used by consumers and diverted from landfills or incinerators before being incorporated into a new product.

A waste reduction, reuse and recycling program must collect and measure the waste diverted through recycling and reuse, which is the amount of waste that is prevented from going to landfills or incinerators by being recovered, reused, or recycled. This is one of the key indicators of the environmental performance and benefits of a waste management program, as it can reduce greenhouse gas emissions, conserve natural resources, save energy and water, and create jobs. LEED v4.1 recognizes and rewards this strategy in the Construction and Demolition Waste Management credit1, which aims to reduce construction and demolition waste disposed of in landfills and incineration facilities2. The other options are not directly related to the waste reduction, reuse and recycling program, as they involve different types of materials or metrics that are not relevant for measuring waste diversion. References: LEED Link: Construction and Demolition Waste Management, section “LEED v4.1 BD+C: Construction and Demolition Waste Management”; LEED v4 Waste Management Credits - Zero Waste, section “LEED v4 Waste Management Credits”

LEED certification is a process that evaluates the environmental performance and sustainability of a building project based on a set of rating systems. To earn LEED certification, a project must satisfy all the mandatory requirements, or prerequisites, of the chosen rating system, and earn a minimum number of points by meeting optional criteria, or credits. The number of points determines the level of certification: Certified (40-49 points), Silver (50-59 points), Gold (60-79 points), or Platinum (80+ points)123.

Employing a LEED AP (Accredited Professional) on the project team is not a requirement for LEED certification, but it can provide an advantage, as LEED APs have demonstrated their knowledge and expertise in green building and LEED rating systems. Having a LEED AP on the project team can also earn one point under the Integrative Process credit4.

Conducting a whole-building life-cycle assessment is not a requirement for LEED certification, but it can be an option for earning points under the Building Life-Cycle Impact Reduction credit. A life-cycle assessment is a method of evaluating the environmental impacts of a building over its entire life span, from extraction of materials to disposal or reuse3.

Earning a minimum of 50 points or meeting a prerequisite is not a sufficient condition for LEED certification, as it does not account for the other prerequisites or the level of certification. A project must meet all the prerequisites and earn at least 40 points to qualify for the lowest level of certification

An alternative commuting incentive program is a strategy that can be used to encourage alternative transportation methods, such as public transit, carpooling, biking, or walking. An alternative commuting incentive program can provide benefits or rewards for the employees or tenants who use alternative transportation modes, such as subsidies, vouchers, discounts, prizes, recognition, or preferential parking. This strategy can help to achieve LEED Location and Transportation Credit: Alternative Transportation1 . References: LEED v4 Green Associate Candidate Handbook1, LEED v4 BD+C Reference Guide

EPA’s ENERGY STAR Portfolio Manager is a no-cost, interactive energy management tool that allows you to securely track and assess energy and water consumption across your building portfolio12. You can use Portfolio Manager to benchmark your building’s performance, set investment priorities, verify savings, and apply for ENERGY STAR certification23. Portfolio Manager does not measure embodied energy, which is the total amount of energy required to produce, transport, and install building materials.

ASHRAE stands for the American Society of Heating, Refrigerating and Air-Conditioning Engineers, a professional organization that develops standards and guidelines for the design, operation, and maintenance of buildings. ASHRAE standards are applicable to two LEED categories: Energy and Atmosphere (EA) and Indoor Environmental Quality (IEQ). The EA category addresses the energy performance, efficiency, and renewable sources of buildings. The IEQ category addresses the indoor air quality, thermal comfort, lighting quality, and acoustic performance of buildings. Some of the ASHRAE standards that are relevant for these categories are: ASHRAE Standard 90.1 for energy efficiency; ASHRAE Standard 62.1 for ventilation; ASHRAE Standard 55 for thermal comfort; ASHRAE Standard 189.1 for high-performance green buildings1 . References: LEED v4 Green Associate Candidate Handbook1, ASHRAE’s Standards & Guidelines

Occupant surveys are tools that can be used to identify indoor environmental issues and prepare a corrective action plan to make necessary changes. Occupant surveys are questionnaires that collect feedback from the building users about their satisfaction, comfort, health, and productivity in relation to the indoor environmental quality (IEQ) factors, such as thermal comfort, indoor air quality, lighting quality, acoustic quality, and occupant control. Occupant surveys can help to identify the sources and causes of IEQ problems, as well as the potential solutions and improvements. Occupant surveys are also required for some LEED credits, such as IEQc7.2 Thermal Comfort, Verification1, which requires a corrective action plan if more than 20% of the occupants are dissatisfied with the thermal conditions in the space2. The other options are not directly related to identifying indoor environmental issues and preparing a corrective action plan, as they involve different types of tools or metrics that are not relevant for measuring occupant satisfaction and comfort.

An occupant survey is the most efficient way for building users to rate the heating and air-conditioning and other aspects of work spaces. An occupant survey is a tool that collects feedback from building occupants about their satisfaction with various aspects of their indoor environment, such as thermal comfort, lighting quality, acoustic quality, air quality, and spatial layout. An occupant survey can help identify areas for improvement, monitor performance, evaluate design strategies, and inform future decisions. The LEED Green Associate Candidate Handbook states that one of the strategies for achieving indoor environmental quality is to “conduct occupant surveys on thermal comfort” [1, p. 16]. References: LEED Green Associate Candidate Handbook, [Occupant Surveys | Center for the Built Environment]

Occupancy sensors are devices that detect the presence or absence of people in a space and automatically turn the lights on or off accordingly. By installing occupancy sensors for the building’s lighting system, projects can achieve two benefits: improving the indoor environmental quality (IEQ) and reducing the energy consumption. Occupancy sensors can enhance the IEQ by providing lighting control for individual spaces, allowing occupants to adjust the light levels to their preferences and needs. Occupancy sensors can also save energy by avoiding unnecessary lighting when spaces are unoccupied, thus lowering the electricity demand and greenhouse gas emissions. References: LEED v4 Reference Guide for Building Design and Construction, p. 507 1; LEED v4 Reference Guide for Building Operations and Maintenance, p. 241 1

The Promote Sustainable and Regenerative Material Resource Cycles impact category in LEED encourages the use of materials that can be continually cycled back into the same system at their end-of-life. This is referred to as moving to cyclical, non-depleting material cycles. It promotes the use of renewable or recyclable materials and reduces waste. References: LEED Green Associate Candidate Handbook, U.S. Green Building Council resources

Placing grilles, grates or mats at all major entrances is an example of permanent entryway systems used to reduce dust, dirt and contaminants brought into a facility. Permanent entryway systems are designed to capture dirt and particulates from people’s shoes and prevent them from entering the indoor environment. This improves the indoor air quality and reduces the need for cleaning and maintenance. The LEED Green Associate Candidate Handbook states that one of the strategies for achieving indoor environmental quality is to “use permanent entryway systems (grilles, grates, mats) to reduce particulate matter being brought into buildings at regular entryways” [1, p. 16]. References: LEED Green Associate Candidate Handbook, [Indoor Environmental Quality | U.S. Green Building Council]

One of the values and benefits of building green is that it will enhance the health of the building occupants. Building green is a process that incorporates environmental considerations into every stage of a building’s life cycle, from design to construction to operation to end-of-life. Building green can improve the indoor environmental quality (IEQ) of a building, which is the physical and psychological conditions of the indoor spaces that affect the health, comfort, and productivity of the occupants. Building green can enhance IEQ by using low-emitting materials, providing adequate ventilation, controlling temperature and humidity, optimizing daylighting and lighting quality, reducing noise levels, and promoting occupant well-being12. References: LEED v4 Green Associate Candidate Handbook1, LEED v4 BD+C Reference Guide2

An integrative process is a collaborative approach that involves all project stakeholders in the design and decision-making process from the beginning to the end of a project. It aims to optimize the performance, environmental, social, and economic outcomes of a project by considering the interrelationships and synergies between various building and site systems. By identifying overlapping relationships, services and redundancies among systems, an integrative process can result in increased performance and reduced costs, as it can create more efficient, effective, and innovative solutions that meet the project goals and requirements. For example, an integrative process can help to reduce the energy demand of a building by integrating passive design strategies, such as building orientation, envelope design, daylighting, natural ventilation, and shading, which can also improve the indoor environmental quality and occupant comfort. An integrative process can also help to reduce the material and water consumption of a project by reusing existing resources, selecting durable and low-impact materials, and implementing water-efficient fixtures and systems, which can also reduce the waste generation and environmental impact of the project

The Montreal Protocol is an international treaty that aims to protect the ozone layer by phasing out the production and consumption of ozone-depleting substances (ODS). ODS are chemicals that contain chlorine or bromine, which can destroy the ozone molecules in the stratosphere. CFCs, or chlorofluorocarbons, are a group of ODS that were widely used in refrigeration, air conditioning, aerosols, and solvents. The Montreal Protocol banned the production of CFCs in 201012. Freon is a trade name for some CFCs and HCFCs, or hydrochlorofluorocarbons, which are also ODS but less harmful than CFCs. The Montreal Protocol also controls the production of HCFCs, which are being phased out gradually12. Ammonia is not an ODS and is not regulated by the Montreal Protocol1.

References:

The Montreal Protocol on Substances That Deplete the Ozone Layer | U.S. Department of State2

Montreal Protocol - Wikipedia1

The Montreal Protocol: fixing the ozone layer and taking climate action - Canada.ca3

Installing dual-flush toilets can significantly reduce indoor water demand. Dual-flush toilets have two flush options: a half flush for liquid waste and a full flush for solid waste. By using less water for liquid waste, these toilets can reduce overall water consumption by up to 30%, helping to achieve the owner’s water reduction goal. References: LEED Green Associate Candidate Handbook, U.S. Green Building Council resources

The reclaimed wood doors can be used to meet the Materials Reuse credit under the Building Product Disclosure and Optimization category in LEED v4. This credit rewards projects for reusing materials that have been recovered from existing buildings or products, and reduces the demand for virgin materials and the associated environmental impacts. The credit does not have any distance requirements for the source of the reused materials, unlike the Recycled Content and Regional Materials credits.

References:

LEED v4: Building Design + Construction Guide1, page 36

LEED v4 and Low Carbon Building Materials2, page 19

Including subsidies for carpools is a strategy that can increase the number of points the project receives for Location and Transportation credits. This is because it reduces the demand for single-occupancy vehicle trips and parking spaces, which in turn reduces greenhouse gas emissions, traffic congestion, and land consumption12. The project can earn up to 15 points for the Transportation Demand Management credit by providing various incentives and programs to encourage alternative modes of transportation, such as carpooling, public transit, biking, or walking12.

The Sustainable Sites (SS) category addresses the site selection, design, construction, and operation of a project, as well as its impacts on the natural and built environment. One of the goals of this category is to reduce light pollution and discourage the development of previously undeveloped land. Light pollution is the excessive or inappropriate use of artificial lighting that can have adverse effects on human health, wildlife, ecosystems, and astronomy. Previously undeveloped land is land that has not been graded, cleared, or built upon prior to the current project and remains in a natural state. Developing previously undeveloped land can result in habitat loss, soil erosion, stormwater runoff, and increased infrastructure costs13. References: LEED v4 Green Associate Candidate Handbook1, LEED v4 BD+C Reference Guide3

 Flush out process is performed to remove volatile organic compounds (VOCs) from the indoor air after construction or renovation12. VOCs are chemicals that can evaporate at room temperature and cause health problems, such as headaches, nausea, and irritation3. Flush out process involves supplying 100% outdoor air to the building for a certain period of time or until a certain amount of air changes are achieved12.

References:

Flush-out documentation | LEEDuser1

Building flushout - option 2 | LEEDuser2

Volatile Organic Compounds’ Impact on Indoor Air Quality | Indoor Air Quality (IAQ) | US EPA3

The term “LEED certified building” is the correct usage according to the U.S. Green Building Council (USGBC). This term indicates that a building has met the standards set by the LEED rating system and has been officially certified by the USGBC. References: LEED Green Associate Candidate Handbook, U.S. Green Building Council resources

Integrated Project Planning and Design is a prerequisite for healthcare facilities under LEED v4. The intent is to maximize opportunities for the adoption of cost-effective integrated green design and construction strategies as early as pre-design1.

References:

LEED v4 | HPAC Engineering1

Life-cycle costing (LCC) is a method of estimating the total cost of owning and operating an asset over its entire life span. LCC considers all costs associated with the acquisition, installation, operation, maintenance, and disposal of the asset12. LCC can help businesses make better decisions about purchasing, budgeting, pricing, and investing in assets2.

LCC does not quantify environmental impacts such as acidification, eutrophication, or global warming. These impacts are measured by life-cycle assessment (LCA), which is a method of evaluating the environmental effects of a product or service throughout its life cycle. LCA considers the inputs and outputs of materials, energy, and emissions at each stage of the product or service life cycle34. LCA can help businesses identify opportunities to reduce their environmental footprint, improve their sustainability performance, and comply with environmental regulations4.

However, LCC and LCA are often used together to compare different alternatives based on both economic and environmental criteria. For example, a business may use LCC to estimate the energy costs of different lighting options, and LCA to estimate the greenhouse gas emissions of each option. By combining LCC and LCA results, the business can select the option that minimizes both costs and emissions.

Greenwashing is a term that describes misinformation presented to consumers to portray a product or policy as being more environmentally friendly than it is. Greenwashing can be done by using vague or misleading claims, false labels or certifications, irrelevant or exaggerated benefits, or hidden trade-offs. Greenwashing can deceive consumers into buying products or supporting policies that are not truly green, and undermine the credibility and effectiveness of genuine green initiatives1 . References: LEED v4 Green Associate Candidate Handbook1, EPA’s Greenwashing

Integrative process is a collaborative approach that involves all project stakeholders in the design and decision-making process from the beginning to the end of a project. It aims to optimize the performance, environmental, social, and economic outcomes of a project by considering the interrelationships and synergies between various building and site systems. One of the key aspects of integrative process is to establish feedback loops that allow for continuous monitoring, evaluation, and improvement of the project performance during its operation. Therefore, option C is an example of integrative process, while the other options are not directly related to it. References: Integrative process | U.S. Green Building Council, section “Integrative Process”; Understanding Integrative Design in LEED v4, page 1; LEED Integrative Process Credit Explained, section “INTEGRATIVE PROCESS V4 CREDIT OVERVIEW”

process water is water that is used for specific processes in industries, businesses, or buildings. Process water can include water used for cooling, heating, washing, rinsing, sterilizing, humidifying, or other purposes. Process water can also include water used for building systems, such as cooling towers, boilers, chillers, or irrigation123.

Process water is different from domestic water, which is water used for human consumption or hygiene, such as drinking, cooking, bathing, or flushing toilets. Process water is also different from wastewater, which is water that has been contaminated by human or industrial activities and requires treatment before being discharged or reused24.

Process water is an important aspect of water efficiency in LEED certification. LEED v4.1 offers credits for optimizing process water use by reducing the demand or increasing the use of alternative sources of water, such as rainwater, graywater, or reclaimed water

The Integrative Process Credit in LEED v4 requires the project team to implement an integrative process that enables them to discover unique opportunities for enhancing project performance and environmental benefits1. The project team should identify and use opportunities to achieve synergies across disciplines and building systems2.

References := Integrative process | U.S. Green Building Council, LEED Integrative Process Credit Explained - Projectific, Inc.

The LEED credit weightings are based on the impact categories defined and established by the USGBC, which is the organization that developed and administers the LEED rating system. The impact categories are aligned with the USGBC’s mission and vision of transforming the built environment to enhance environmental and human health. The impact categories are also informed by the Environmental Protection Agency’s (EPA) Tools for the Reduction and Assessment of Chemical and Other Environmental Impacts (TRACI) methodology, which provides a framework for assessing environmental impacts across different categories. References: LEED Link: Impact categories, section “LEED v4 impact categories”; LEED v4 Impact Category and Point Allocation Process Overview, page 1; LEED Green Associate Candidate Handbook, page 14

vocs are volatile organic compounds that can evaporate from paints, solvents, adhesives, and other building materials. They can cause health problems such as eye irritation, respiratory distress, headaches, and cancer. Limiting the concentration of vocs in the air protects the health of construction personnel by reducing their exposure to these harmful substances12.

References :=

Occupational Hygiene - Occupational Exposure Limits | CCOHS

1910.1450 - Occupational exposure to hazardous chemicals in laboratories. | Occupational Safety and Health Administration

The Full Time Equivalent (FTE) occupancy of a project is a measure of how many people occupy a building or space on a regular basis. The FTE occupancy is calculated by dividing the total number of hours worked by all occupants in a week by the standard weekly hours for one FTE occupant. The standard weekly hours for one FTE occupant is typically 40 hours per week1 . For this project, the FTE occupancy is calculated as follows:

16 employees x 4 hours/day x 5 days/week = 320 hours/week 20 employees x 6 hours/day x 5 days/week = 600 hours/week 10 employees x 8 hours/day x 5 days/week = 400 hours/week Total hours/week = 1320 hours/week FTE occupancy = 1320 hours/week / 40 hours/week = 33 Therefore, the FTE occupancy of the project is 33. References: LEED v4 Green Associate Candidate Handbook1, LEED v4 BD+C Reference Guide

ENERGY STAR Portfolio Manager is an online tool developed by the U.S. Environmental Protection Agency (EPA) that allows building owners and managers to measure and track the energy and water performance of their buildings, as well as benchmark their buildings against similar buildings nationwide. The tool uses a 1-100 ENERGY STAR score to rate the energy efficiency of a building relative to its peers, where a score of 50 represents median performance and a score of 75 or higher indicates top performance1 . References: LEED v4 Green Associate Candidate Handbook1, ENERGY STAR Portfolio Manager

impervious surfaces are those that do not allow water to infiltrate into the soil, such as asphalt, concrete, roofs, or compacted soil. Impervious surfaces increase the amount and speed of stormwater runoff, which can cause erosion, sedimentation, flooding, and pollution of downstream water bodies. Minimizing impervious surfaces can help reduce these negative impacts and preserve the aquatic habitat and natural stream morphology12.

Native vegetation is the plant life that is adapted to the local climate and soil conditions. Native vegetation can help filter pollutants, stabilize soils, reduce runoff, provide shade, and create habitat for wildlife. Enhancing native vegetation can help restore the natural functions and diversity of the ecosystem and protect the aquatic habitat and natural stream morphology13.

Rainwater is the precipitation that falls on the site. Rainwater can be captured and reused for various purposes, such as irrigation, toilet flushing, or cooling. Capturing and reusing rainwater can help reduce potable water demand, decrease stormwater runoff, and prevent flooding and pollution of downstream water bodies. Capturing and reusing rainwater can help conserve water resources and protect the aquatic habitat and natural stream morphology1 .

These strategies are consistent with the LEED v4 requirements for the Sustainable Sites credit category, which aims to protect and restore habitat, manage stormwater, reduce heat island effects, and promote alternative transportation.