46 C.F.R. § 194.20-9 – Storage.

(a) Chemical stores shall be stored in the chemical storeroom as prescribed in § 194.05-1(b).
(b) All items stored in the storeroom shall be secured against shifting and with due consideration for chemical compatibility and safety standards.
1. (1) Items shall not be stowed on the deck.
2. (2) Shelving shall be so constructed as to provide a clear space of at least 4 inches between the bottom shelf and the deck.