LEED AP O+M study materials
LEED AP O+M study resources

LEED AP O+M: Project and Performance Documentation: Arc, Performance Periods, Prerequisites, and Recertification

LEED AP O+M · Work through your exam, one topic at a time.

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Project and Performance Documentation: Arc, Performance Periods, Prerequisites, and Recertification

What the domain tests

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.

Core rules

  • Most O+M performance credits use a 12-month performance period; the period must be consecutive and representative of normal operations.
  • Arc is the GBCI platform for entering meter data, waste and purchasing data, transportation survey results, and occupant comfort survey results. It calculates performance scores and generates credit documentation.
  • Utility data should come from actual bills or meters, not estimates. Gaps must be resolved with real data or a documented acceptable approach; do not silently extrapolate.
  • All prerequisites must be met at the time of certification, even if the project is strong on credits.
  • O+M certification is time-limited. Recertification is required every three years to maintain the credential; Arc data and a new performance period support the recertification submittal.
  • Documentation should be internally consistent: meter boundaries, floor area, occupancy, and reporting periods must match across credits.

Worked example

An office has 12 months of electricity bills but is missing two months for a separately metered tenant. The team cannot simply average the remaining ten months and call it complete. It obtains the missing tenant bills or a verified landlord statement, then enters the full 12-month series. Because the building area used in Arc also feeds ENERGY STAR benchmarking, the team reconciles gross floor area before submitting.

Traps

Using a short, seasonal period; mixing calendar years without explanation; treating Arc as a design tool; forgetting that recertification is a recurring obligation; and submitting a prerequisite narrative that does not match the meter data.