The GRAVE Act expands eligibility for federal headstones or grave markers to certain members of the military reserves who don't qualify as veterans under current law. Specifically, the bill allows reservists who haven't met the minimum active-duty service requirements to receive a government-provided headstone or grave marker when they pass away, recognizing their military service even if it fell short of traditional veteran status. This change is administered through the Department of Veterans Affairs and amends existing federal law governing headstone and grave marker benefits. The legislation does not specify new funding amounts or implementation timelines, instead modifying the eligibility criteria under existing veteran benefits programs.