100 LEED v5 Green Associate Core Exam Knowledge Points

Exam Weight Distribution Reference:

Part 1 LEED Process + Integrative Process (24 pts, 1–24 | Highest exam weighting)

1. USGBC develops & revises LEED rating system; GBCI administers all LEED certification review and GA/AP professional examinations.
2. LEED v5 three core impact areas: Decarbonization (50% total point weight), Quality of Life (25%), Ecological Conservation & Restoration (25%).
3. Four LEED certification levels: Certified(40–49), Silver(50–59), Gold(60–79), Platinum(≥80; Platinum needs extra mandatory decarbonization rules in v5).
4. Three non-negotiable MPR (Minimum Program Requirements): permanent location on existing land, reasonable LEED project boundary, compliance with official project size rules.
5. LEED has six primary rating families: BD+C, ID+C, O+M, LEED Homes, ND(Neighborhood Dev), Cities & Communities.
6. BD+C NC applies to new construction/major renovation ≥60% finished floor; BD+C Core&Shell: ≤60% completed interior space.
7. ID+C targets full interior fit-out without exterior shell/site construction work; O+M for fully occupied existing buildings ≥1 year.
8. 40/60 Rule: When mixed-use space exists, assign rating by area; <40%=inapplicable, >60%=mandatory corresponding rating, 40–60% team selects reasonably.
9. LEED two official inquiry paths: CIR(project-only no precedent) vs LE Interpretation(USGBC issued, all future projects follow).
10. Split review: BD/ID+C split design-phase submission + construction-phase final submission; Standard review submits full docs after project completion.
11. O+M performance period generally requires 12-month operational data, extendable to maximum 24 months for data collection.
12. LEED GA exam: 100 MC questions, total score range 125–200, passing threshold ≥170, total exam duration=2 hours.
13. LEED GA needs 15 CE credit every 2 years for credential maintenance (3 LEED-specific CE required out of total).
14. LEED prerequisites = mandatory all-project requirements (must pass first); Credits = optional earnable points toward certification.
15. Innovation credit: bonus points for exemplary performance above standard credit or unlisted valid regenerative green strategies.
16. Regional Priority credit: bonus points for region-specific critical sustainability challenges.
17. LEED develops via 5-year regular revision cycle with Pilot Credit Library for pre-test new credit items.
18. Integrative Process three core project phases: Discovery → Design&Construction → Occupancy&Performance Feedback.
19. Three integrative core mindsets: Life-cycle approach, Systems thinking, Iterative decision-making.
20. Life-cycle costing analyzes upfront cost + long-term operational saving to calculate investment payback period.
21. Environmental justice = equal environmental protection & equitable decision access for all communities; Fenceline communities reside adjacent polluting facilities.
22. Four core early assessments required in v5 integrative prerequisite: Carbon, Climate Hazard, Human Equity, Resilience Planning Assessment.
23. Resilience = capacity to prevent, withstand, recover from natural/climate disruption (flood, wildfire, extreme heat etc.).
24. Two core carbon types: Operational carbon(daily building operation GHG), Embodied Carbon(material extract/manufacture/transport/construction emission).

Part2 Location & Transportation (13 pts,25–37 | Exam ~13%)

1. Sensitive receptors = hospitals, schools, senior housing (vulnerable occupants sensitive to air/noise pollution).
2. Protected environmentally sensitive areas: Wetlands, floodplains, prime agricultural land; regular desert not classified as protected sensitive zone.
3. Brownfield = contaminated land with hazardous substance requiring remediation before redevelopment; Brownfield cleanup improves local economy & ecosystem.
4. High-density compact mixed-use cuts VMT(Vehicle Miles Traveled), supports local amenities & reduces greenfield development.
5. Alternative transportation: public transit, carpool, biking, walking; single-person EV counts as SOV not alternative transport.
6. All single-occupancy vehicle(any fuel:gas/electric) creates four harms: noise pollution, tire microplastic waste, road construction damage, large parking footprint.
7. TDM(Transportation Demand Management): two paths – disincentive(parking fee/parking limit), incentive(transit discount/bike amenities).
8. Active transportation = human-powered travel: walk, bike, wheelchair access; needs secure bike storage + shower space for occupants.
9. EV charging installation reduces range anxiety & boosts EV adoption to cut transport carbon emission.
10. Locating on previously developed land preserves untouched natural/greenfield ecosystems.
11. Mixed-income affordable housing prevents community displacement caused by new development gentrification.
12. Local hire & construction skill training improves local economic benefit from project construction.
13. Avoid developing near fenceline & sensitive receptor sites with high industrial/highway pollution.

Part3 Sustainable Sites (12 pts,38–49 | Exam ~12%)

1. Green/vegetated roof dual core benefits: reduce urban heat island + control on-site stormwater runoff.
2. Urban Heat Island(UHI): dark impervious pavement/roof absorb solar heat → urban hotter than rural; mitigation: high-SRI surface, tree canopy, pervious paving, green roof.
3. SRI(Solar Reflectance Index): higher value = better heat-reflective cool surface for roof/hardscape.
4. Light pollution control: downward-shielded lamp, warm amber lighting, motion/timer auto shutoff, reduce blue LED night light.
5. Blue light disrupts human & wildlife regular sleep cycle if exposed overnight.
6. Drip irrigation feeds water directly to plant root to cut evaporation & outdoor potable water consumption.
7. Impervious surface blocks rain infiltration → higher storm runoff/erosion/flood risk; pervious paving enhances groundwater recharge.
8. Erosion control(silt fence/gabion/native mulch) prevents topsoil loss & downstream water sediment contamination.
9. Native/adapted landscape plants eliminate routine irrigation demand & support local biodiversity.
10. Bird-friendly glass prevents bird collision mortality by improving glass visibility to avian species.
11. Early pre-design site assessment maps existing habitat, soil condition, drainage & invasive species distribution.
12. Constructed rain garden/retention pond captures stormwater & supplies supplementary irrigation water.

Part4 Water Efficiency (11 pts,50–60 | Exam ~11%)

1. Global water distribution: 97% seawater; most remaining fresh water stored in glaciers, ice caps + groundwater; river <0.05% total fresh water.
2. Potable water = drinkable clean water; only used for drinking, handwashing, shower, food prep; irrigation/toilet can use non-potable.
3. Graywater = sink/shower/clothes washer wastewater (no toilet blackwater); belongs to non-potable wastewater.
4. Blackwater = toilet sewage-containing wastewater requiring advanced treatment before reuse.
5. Process water: cooling tower, commercial dishwashing/hotel laundry; regular toilet/faucet = domestic indoor fixture water.
6. Water submeter core three functions: log water use trend, verify fixture efficiency, early leak identification to avoid waste.
7. Municipal government constructs & operates potable water treatment plant + centralized municipal sewage treatment plant.
8. Xeriscaping uses drought-resistant native plant to eliminate regular irrigation requirement.
9. High-efficiency fixture(low-flow faucet/dual-flush/waterless urinal) cuts indoor potable fixture consumption.
10. On-site rain/graywater reuse replaces potable water for irrigation & toilet flushing.
11. Water treatment/transport consumes massive energy → water saving equals indirect carbon reduction.

Part5 Energy & Atmosphere (14 pts,61–74 | Highest single exam weighting ~14%)

1. Renewable energy(solar PV/wind/geothermal): naturally replenished; Fossil fuel(coal/oil/gas)=non-renewable high-carbon energy.
2. Plug load = laptop/monitor/outlet-connected office appliance; Process load=commercial cooking/escalator/freezer; Thermal load=HVAC heating/cooling.
3. Building envelope: wall/roof/window/foundation; higher R-value = better insulation performance; thermal bridge causes unwanted heat gain/loss.
4. Commissioning(Cx): verify all building systems run per Owner’s Project Requirements(OPR).
5. BECx(Building Enclosure Commissioning): special commission for exterior envelope installation quality check.
6. Retro-commissioning: optimize existing building system performance for operational improvement.
7. Monitoring-based Cx uses real-time utility data for continuous system optimization.
8. GWP(Global Warming Potential): higher refrigerant value = stronger greenhouse effect; select low-GWP HVAC fluid.
9. Energy-recovery ventilation(ERV) exchanges exhaust & incoming air to save conditioning energy.
10. Demand-controlled ventilation adjusts airflow automatically by indoor CO? concentration.
11. Building electrification replaces fossil fuel combustion with electric devices(e.g. heat pump instead gas furnace) to cut operational carbon.
12. Grid interact tools: Demand Response + on-site energy storage + islanding mode for power outage backup.
13. REC(Renewable Energy Certificate): purchase off-site renewable power credit to offset building grid electricity use.
14. On-site PV generates self-consumption renewable power & surplus can feed into utility grid.

Part6 Materials & Resources (12 pts,75–86 | Exam ~12%)

1. VOC(Volatile Organic Compound): indoor off-gas from paint/adhesive/flooring; low-VOC material improves IAQ.
2. Embodied Carbon = full-cycle emission from raw material extraction, manufacture, transport, construction, disposal.
3. LCA(Life-Cycle Assessment): full-life environmental impact evaluation of building material from cradle to grave.
4. Material circular: prioritize reuse/recycle to reduce virgin raw material exploitation.
5. Construction waste diversion: salvage/recycle/repurpose to avoid landfill incineration.
6. Overage = over-order excess construction material; proper procurement reduces construction waste source.
7. Local material procurement shortens transport distance & cuts embodied carbon from delivery.
8. Multi-attribute certified products verified across environment/social/health multiple indicators.
9. Deconstruction(dismantle) > full demolition for maximum material salvage reuse.
10. Operational waste diversion plan includes classified collection for paper/plastic/food compost.
11. Avoid PFAS/heavy-metal hazardous content material to protect supply-chain & occupant health.
12. Material sufficiency = optimize structural design to reduce total raw material consumption.

Part7 Indoor Environmental Quality (12 pts,87–98 | Exam ~12%)

1. IAQ(Indoor Air Quality): source control is most effective air pollution prevention measure.
2. Source control: indoor smoking ban + no vehicle idling near building air intake(avoid ETS secondhand smoke).
3. Mold grows with excess moisture + organic medium; core prevention=moisture control in envelope/plumbing/HVAC.
4. PM2.5 fine particulate penetrates deep lung; high MERV air filter improves filtration efficiency.
5. Daylighting uses natural light to cut electric lighting load + improve occupant wellness.
6. Biophilic design integrates plant/natural view indoors to enhance human mental health.
7. Thermal comfort depends on air temp, humidity, airflow + individual clothing/activity level.
8. Inclusive/universal design creates accessible space for all ages & mobility-impaired users.
9. Green cleaning uses low-toxic cleaner to reduce indoor chemical exposure for custodian/occupants.
10. IPM(Integrated Pest Management): prioritize non-chemical pest prevention before pesticide use.
11. Passive survivability = building self-maintain safe indoor condition during power/water outage via high-performance envelope/operable window.
12. Acoustic design optimizes room sound insulation & reverberation for space-specific usage(school/hospital/office).

Part8 Cross-cutting & Project Priorities (2 pts,99–100 | Exam ~2%)

1. Exemplary performance: project exceeds standard credit threshold for extra innovation/regional bonus eligibility.
2. Regional Priority align project strategies with local climate/resource/ecological unique challenges.