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The Environmental PE exam

Water is the biggest of six areas on the environmental PE exam, at 19‑29 of its 80 questions, and since April 2026 sustainability has its own area of 7‑11. You get 8 hours, can test year-round at Pearson test centers and pay NCEES $400.

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Updated October 2026 · Written from official sources, listed at the bottom of this page

Environmental PE exam topics

Knowledge areaQuestions
Water19‑29
Air13‑20
Site assessment and remediation13‑20
Solid and hazardous waste11‑17
Sustainability7‑11
Environmental and occupational health7‑11

From the specifications effective April 2026.

References in the environmental exam

You get the NCEES PE Environmental Reference Handbook on screen. NCEES’s guide lists no design standards for this exam. It uses SI and US units.

Environmental PE or Civil: Water Resources?

PE Environmental is a separate exam from Civil: Water Resources and Environmental, which is a civil exam centered on hydraulics and hydrology.

Civil: Water Resources and Environmental →Environmental pass rate →
Sources: NCEES and 2 more. Checked October 2026.

Rules and fees can change, so check the official site before your test.

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