US Navy and Marine Corps mandate annual gas mask testing

The U.S. Marine Corps and Navy have issued new orders mandating annual Chemical, Biological, Radiological, and Nuclear (CBRN) gas mask fit and seal training. The requirement, scheduled to take effect at the end of August, is designed to ensure that protective equipment can form a secure seal against the face, which is critical for safety in chemical or biological threat environments.

The new training mandate is explicitly linked to enforcing stricter grooming standards. The services stated the policy is intended to “reinforce grooming compliance,” as facial hair can prevent gas masks from sealing correctly. This move follows recent Department of Defense directives aimed at tightening restrictions on medical and religious shaving waivers.

These policy changes come amid a broader push for military accountability and combat effectiveness. Previously, the Marine Corps implemented measures requiring personnel with pseudofolliculitis barbae—a skin condition causing painful inflammation—to undergo medical reevaluations. Under current provisions, those unable to meet grooming requirements for extended periods may face administrative separation. Critics have noted that these shaving restrictions can disproportionately affect Black and Asian service members.