Hong Kong Regulations

DANGEROUS GOODS (GENERAL) REGULATIONS - REGULATION 12

Mode B stores

(1) A Mode B store shall consist of a substantially constructed fireproof
container, either fixed or movable, capable of being locked and so constructed
that neither inside nor outside is there any exposed ferrous metal.

(2) For the purposes of these regulations, no store shall be deemed to be a
Mode B store unless approved in writing as such by the Authority.