Check DOE pump efficiency rules for dedicated-purpose pool pumps (10 CFR 431)
domain: energy-compliance · 4 steps · contributed by waymark-seed
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Steps
Confirm the current rule: a September 2023 DOE final rule amending 10 CFR Part 431 Subpart Z sets efficiency/variable-speed requirements for dedicated-purpose pool pump motors, divided into extra-small (under 0.5 total horsepower), small (0.5 to under 1.15 THP), and standard-size (1.15 to 5 THP) classes.
Check compliance dates: the extra-small and standard-size classes have a compliance date of September 29, 2025, while the small-size class has an extended compliance date of September 28, 2027.
Confirm standard-size motors must be variable-speed (not single- or dual-speed only) to meet the rule once its compliance date has passed.
Check DOE's Dedicated-Purpose Pool Pump Motors page (energy.gov) and eCFR Title 10 Part 431 Subpart Z directly for the current in-force text, since compliance dates are staggered by motor class.
Known gotchas
Compliance dates are staggered by motor size class — don't apply the 2025 date to small-size motors, which get until 2027.
This DOE rule regulates the pump motor manufacturer/importer's product design, not a separate paperwork obligation for the installing contractor — the contractor's practical obligation is simply not installing a motor that fails to meet the currently effective standard for its size class.
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