Attributes . UL 4, 83, 1479, 1581, 2556, File Reference E7330; NEC 250.118(8), 300.22(C), 392, 320, 517.13, 518, 645; Federal Specification A-A-59544 (Formerly J-C-30B), Meets all applicable OSHA and HUD Requirements, Cable Tray Rated, UL Classified 1, 2, and 3 Hour through (Fire) penetration product, R14141, Environmental Air-Handling Space Installation per NEC 300.22(C) . Names