The Marine Corps has dropped its long-standing height-and-weight screening process. MARADMIN 066/26, released Feb. 26, 2026, finalizes the switch to waist-to-height ratio (WHtR) as the primary screening tool. Change 1 refines the advance notification from December 2025 and applies to all Marines, active and reserve, effective Jan, 1, 2026. The new standard requires a waist-to-height ratio below 0.52.  The waist is measured at the navel and divided by height. Exceed the limit, and the Marine