Code of Federal Regulations Title 46. Shipping § 46.32.56–30 Category A machinery spaces:  Bulkheads and decks—T/ALL

(a) Bulkheads and decks that separate category A machinery spaces from cargo pumprooms must be “A” Class construction.

(b) Bulkheads and decks that separate category A machinery spaces or cargo pumprooms, including the pumproom entrance, from accommodation, service, or control spaces must be “A–60” Class construction.