After nearly a year of uncertainty, Energy Star has a new federal home. A March 3, 2026 memorandum transferred the program from EPA to DOE—a shift with real consequences for how residential windows, doors, and skylights get certified, labeled, and tax-credited.
A Program That Almost Went Away Just Changed Zip Codes
Energy Star—the label that has driven residential window, door, and skylight specifications for more than three decades—has a new federal landlord. After a nearly year-long period of uncertainty for Energy Star, the program is headed for a new address—this time with the United States Department of Energy (DOE). The U.S. Environmental Protection Agency (EPA) and the DOE signed a memorandum of agreement, transferring management of Energy Star from EPA to DOE.
The practical dates matter: the memo took effect on March 3, 2026, and will remain in effect for 10 years. The handoff isn't instantaneous. A 90-day transition period covers the transfer of partnerships, IT systems, and databases, moving activities, partnership agreements, trademarks, and IT systems from EPA to the DOE's Office of Critical Minerals and Energy Innovation.
For the fenestration industry—where Energy Star is baked into product marketing, utility rebate programs, and federal tax credits—this is not a bureaucratic footnote. It's a structural change.
Why DOE Is Actually a Logical Home
On paper, the move consolidates authority that was already divided. DOE already develops the test procedures on which Energy Star specifications rely and administers mandatory efficiency standards, certification requirements and enforcement for many of the same categories of products as Energy Star. The residential fenestration industry has lived that split for years: EPA sets the U-factor and SHGC thresholds, but the technical machinery underneath—the Berkeley Lab WINDOW tool, thin-triple R&D, and NFRC's rating infrastructure—has always been closer to DOE.
The transfer is designed to streamline efficiency improvements across products by placing the voluntary ENERGY STAR program under the same administration as mandatory federal appliance standards.
Industry response from the window and door side has been cautiously positive. "The DOE previously managed Energy Star successfully, so we expect a smooth transition from EPA during this time," says Janice Yglesias, executive director of the Fenestration & Glazing Industry Alliance (FGIA). "FGIA is glad to see the program's continuation and will continue to monitor its progress. Regardless of which department manages Energy Star, we remain committed to keeping our members informed of their responsibilities in terms of shipment data reporting and any other program needs."
The Funding Question Everyone Is Watching
The smooth-transition narrative isn't universal. USGBC's federal legislative director Ben Evans flagged a real concern: "While DOE has been a supporting partner with EPA in Energy Star, we have concerns about abruptly moving the entire program to DOE, particularly after Congress demonstrated strong bipartisan support for keeping Energy Star at EPA through full funding in the FY2026 appropriations process." That bipartisan funding put Energy Star on a path toward more stable, predictable budgets and operations. Moving the program to DOE raises questions about how the program will be funded in the future and whether it will maintain its current scope of operations.
The backdrop matters: the move follows recent federal staff reductions at both agencies, and although Congress recently approved $33 million for the program in FY2026, the shift follows efforts to terminate the program previously.
What This Means for Windows, Doors, and Skylights
Energy Star is not a niche marketing add-on for residential fenestration. It underpins:
- Federal tax credits. The 30% credit (up to $600 for windows, $500 for exterior doors) is tied to Energy Star Most Efficient and Energy Star certification thresholds. Any disruption to the label's authority reverberates through builder and remodeler pricing.
- Utility rebate programs. Most state and utility incentive programs cite Energy Star specs as their eligibility floor.
- Version 7.0 enforcement. Version 7.0 specifications are expected to result in dramatic increase in triple-pane window sales in the northern part of the country, and are also expected to foster innovation with some companies starting to pursue industry-leading thin triple-pane glass processing equipment that will only have one spacer vs. two. That innovation pipeline assumes a stable, well-funded certification authority.
- NFRC certification workflows. The EPA-recognized laboratory and certification-body ecosystem now reports up to a different federal agency.
Practical Steps for Manufacturers, Spec Writers, and Contractors
- Watch the 90-day window closely. Trademark ownership, partnership agreements, and the certified-products database all move during this period. Manufacturers with pending certifications or label artwork updates should confirm status directly with their certification body.
- Keep shipment data reporting current. FGIA has flagged this as an ongoing member responsibility regardless of which agency holds the pen.
- Don't assume V7.0 thresholds are frozen. DOE administering the program alongside mandatory minimum standards could accelerate—or complicate—future revisions.
- Spec writers should hold the line on Energy Star Most Efficient language. For projects chasing the 25C tax credit or utility rebates, the label reference remains the cleanest specification hook.
The headline is that Energy Star survived. The subhead is that the fenestration industry now has a new federal counterpart to build relationships with—and a 10-year memo that will shape how U-factor, SHGC, and air leakage thresholds evolve through the rest of the decade.