46 C.F.R. § 194.15-19 Electrical.
Title 46 - Shipping
(a) All electrical equipment located within 18 inches of the deck of the chemical laboratory shall be in accordance with the applicable requirements of Subchapter J (Electrical Engineering) of this chapter for Class I, Division 2, hazardous locations. Electrical equipment located 18 inches or more above the deck may be of a type suitable for wet or dry locations in accordance with Subchapter J.
Title 46: Shipping
PART 194—HANDLING, USE, AND CONTROL OF EXPLOSIVES AND OTHER HAZARDOUS MATERIALS
Subpart 194.15—Chemistry Laboratory and Scientific Laboratory
§ 194.15-19 Electrical.

