LEED AP O+M study guide
LEED AP O+M · Work through your exam, one topic at a time.
The LEED AP Operations + Maintenance (LEED AP O+M) credential is a LEED professional specialty credential listed by the U.S. Green Building Council under "LEED AP with specialty." It is aimed at professionals whose work is the ongoing performance of existing buildings rather than design and construction: facilities and property managers, building engineers and operators, sustainability and energy managers, commissioning providers, and consultants who support existing-building certification and recertification. The LEED AP O+M study guide has 8 sections and about 2,518 words.
01LEED v4.1/v5 O+M Rating System Fundamentals
The O+M fundamentals domain asks you to recognize how the rating system turns building operations into verified performance. Expect questions on category structure, prerequisite-versus-credit logic, certification thresholds, and the difference between design intent and measured outcomes.
318 words, about 2 min02Project and Performance Documentation: Arc, Performance Periods, Prerequisites, and Recertification
This domain tests how O+M projects document performance in Arc and how certification and recertification cycles work. Expect items on performance-period length, data completeness, prerequisite evidence, and the recertification clock.
332 words, about 2 min03Energy and Atmosphere Performance: Benchmarking, Commissioning, Audits, and Metering
EA performance questions focus on measuring whole-building energy, benchmarking against peers, finding savings through commissioning and audits, and verifying savings with meters. The exam favors actual utility data over modeled savings.
339 words, about 2 min04Water Efficiency Performance and Metering
WE performance items test whole-building water accounting, irrigation and cooling-tower metering, and how actual consumption is converted into credit documentation. The focus is measured water use, not fixture-count calculations from design.
316 words, about 2 min05Materials and Resources: Purchasing, Waste, and Ongoing Consumables
MR performance questions test ongoing purchasing, waste diversion, and the difference between consumables, durable goods, and renovation waste. Expect calculations and documentation-boundary questions.
304 words, about 2 min06Indoor Environmental Quality: IAQ Management, Green Cleaning, and Occupant Comfort
EQ performance items test indoor air quality management, green cleaning, and occupant comfort as ongoing operational programs. The exam asks whether a policy exists, is implemented, and is supported by records.
288 words, about 1 min07Site Management, Transportation Performance, and Light Pollution
This domain tests ongoing site management, transportation performance surveys, and light-pollution controls. The exam distinguishes operational practices from design commitments.
306 words, about 2 min08Credential Process and Standards: Eligibility, Exam Administration, and LEED Professional Conduct
This domain covers eligibility for the LEED AP O+M credential, exam administration, credential maintenance, and professional conduct. Expect questions on prerequisites to sit for the exam, what is prohibited during testing, and how ethics violations are handled.
315 words, about 2 min