The bill extends the battlefield acquisition grant program until 2036 and adjusts the authorization of appropriations for related grant programs. It requires studies of French and Indian War and Mexican-American War sites, with a focus on significance, threats, and preservation alternatives. The Secretary of the Interior will oversee these studies, considering inputs and preparing certifications. The bill mandates submission of studies to specific congressional committees within specified timeframes, and clarifies that these studies are included in the "Battlefield Reports."