StacksVerified U.S. regulatory reference

46 CFR §32.56-50

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)Except as provided in paragraph (b) of this section combustible veneers on bulkheads, linings, and ceilings within accommodation, service, or control spaces must be 2 millimeters (.079 inches) or less in thickness.
  2. (b)Veneers on bulkheads, linings, and ceilings in concealed spaces, corridors, stairway enclosures, or control spaces must be an approved interior finish material or a reasonable number of coats of paint.