111.105-9—Explosion-proof and flameproof equipment.
Each item of electrical equipment required by this subpart to be explosion-proof under the classification system of NFPA NEC 2002 (incorporated by reference; see 46 CFR 110.10-1) must be approved as meeting UL 1203 (incorporated by reference; see 46 CFR 110.10-1 ). Each item of electrical equipment required by this subpart to be flameproof must be approved as meeting IEC 60079-1 (incorporated by reference; see 46 CFR 110.10-1 ).