Cross-Boundary Wildfire Mitigation Partnership Act

This Act authorizes the Secretary of the Interior and the Secretary of Agriculture to enter into cooperative agreements with states, local governments, and Indian tribes for the purpose of conducting wildfire mitigation activities across land ownership boundaries. Mitigation activities include mechanical thinning, prescribed burns, and creation of fuel breaks. The Secretaries shall establish a grant program to fund up to 75% of the cost of such activities on non-federal lands, with the remaining 25% provided by the non-federal partner. Grants are conditioned on the adoption of state-approved wildfire risk reduction plans that meet minimum federal standards for ecological soundness and public safety. The Act does not authorize federal land management agencies to conduct activities on non-federal lands without the written consent of the landowner. The Act authorizes $50 million per year for five years, drawn from the general fund. The Government Accountability Office shall report annually on the effectiveness and fiscal efficiency of the program. The Act sunsets after five years unless reauthorized by Congress.