US lawFederal (United States)RegulationsTitle 46 CFR — ShippingChapter I — COAST GUARD, DEPARTMENT OF HOMELAND SECURITYPart 111 — ELECTRIC SYSTEMS—GENERAL REQUIREMENTSSubpart 111.59—Busways111.59-346 C.F.R. § 111.59-3No mechanical cooling.Last amended: 2016Year: 2026Length: 20 wordsOfficial source Cite as 46 C.F.R. § 111.59-3 (2026)A busway must not need mechanical cooling to operate within its rating. [CGD 94-108, 61 FR 28280, June 4, 1996]Previous46 C.F.R. § 111.59-1