New conservation standards for commercial gas water heaters take effect October 6, 2026. Enforcement of civil penalties begins October 6, 2027.

On April 24, 2026, the U.S. Department of Energy (DOE) issued an enforcement policy stating it will not seek civil penalties concerning violations of the certification and/or energy conservation standards for gas-fired commercial water heaters and hot water supply boilers manufactured on or after October 6, 2026, but before October 6, 2027, effectively resulting in a 1-year delay of the compliance date of the new standards. While the standards remain in effect and the enforcement policy may be rescinded at any time, Rheem Commercial is here to help you navigate through the upcoming changes to enable you to make choices that fit your long-term needs.