46 CFR §185.606
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
All escape hatches and other emergency exits used as means of escape must be marked on both sides in clearly legible letters at least 50 millimeters (2 inches) high: “EMERGENCY EXIT, KEEP CLEAR”, unless such markings are deemed unnecessary by the cognizant OCMI.