The REBATE Act allows local governments to directly receive federal grants to run energy efficiency rebate programs in states where the state government is not operating them. Specifically, the bill enables cities and counties to administer two existing Department of Energy programs: the HOMES rebate program, which provides rebates for whole-house energy improvements, and the high-efficiency electric home rebate program, which offers rebates for upgrading to electric appliances and heating systems. Local governments can apply for these grants if their state energy office has not established the programs, rejected funding, or indicated it will not participate. The legislation sets a December 31, 2024 deadline for local government applications and ensures that the total funding each state receives remains the same regardless of whether state or local governments administer the programs.