As of July 18, 2021 new U.S. Department of Energy regulations are now in effect. These new regulations mean that most new pool pumps will now have to be variable-speed energy-efficient pumps.
While you can still use whatever pump you currently have, any new pump or motor that is manufactured will now have to comply with these new energy efficient regulations.
This standard applies to almost all pumps used in the residential pool industry.
This supersedes state regulations, such as California’s Title 20, which took the lead in setting efficiency standards for pumps when it passed in 2005. Additionally, while Title 20 applied only to filtration pumps and only to residential pools, the Department of Energy regulations applies to all pool pumps residential and commercial including dedicated use pumps like booster pumps and water feature pumps.