--- kind: "section" citation: "29 C.F.R. § 1926.903" title: "29" number: "1926.903" heading: "Underground transportation of explosives." url: "https://uscodex.org/cfr/29/1926.903" --- # §1926.903. Underground transportation of explosives. - (a) All explosives or blasting agents in transit underground shall be taken to the place of use or storage without delay. - (b) The quantity of explosives or blasting agents taken to an underground loading area shall not exceed the amount estimated to be necessary for the blast. - (c) Explosives in transit shall not be left unattended. - (d) The hoist operator shall be notified before explosives or blasting agents are transported in a shaft conveyance. - (e) Trucks used for the transportation of explosives underground shall have the electrical system checked weekly to detect any failures which may constitute an electrical hazard. A certification record which includes the date of the inspection; the signature of the person who performed the inspection; and a serial number, or other identifier, of the truck inspected shall be prepared and the most recent certification record shall be maintained on file. - (f) The installation of auxiliary lights on truck beds, which are powered by the truck's electrical system, shall be prohibited. - (g) Explosives and blasting agents shall be hoisted, lowered, or conveyed in a powder car. No other materials, supplies, or equipment shall be transported in the same conveyance at the same time. - (h) No one, except the operator, his helper, and the powderman, shall be permitted to ride on a conveyance transporting explosives and blasting agents. - (i) No person shall ride in any shaft conveyance transporting explosives and blasting agents. - (j) No explosives or blasting agents shall be transported on any locomotive. At least two car lengths shall separate the locomotive from the powder car. - (k) No explosives or blasting agents shall be transported on a man haul trip. - (l) The car or conveyance containing explosives or blasting agents shall be pulled, not pushed, whenever possible. - (m) The powder car or conveyance especially built for the purpose of transporting explosives or blasting agents shall bear a reflectorized sign on each side with the word “Explosives” in letters, not less than 4 inches in height; upon a background of sharply contrasting color. - (n) Compartments for transporting detonators and explosives in the same car or conveyance shall be physically separated by a distance of 24 inches or by a solid partition at least 6 inches thick. - (o) Detonators and other explosives shall not be transported at the same time in any shaft conveyance. - (p) Explosives, blasting agents, or blasting supplies shall not be transported with other materials. - (q) Explosives or blasting agents, not in original containers, shall be placed in a suitable container when transported manually. - (r) Detonators, primers, and other explosives shall be carried in separate containers when transported manually. ## Notes ### Amendments [44 FR 8577, Feb. 9, 1979; 44 FR 20940, Apr. 6, 1979, as amended at 52 FR 36382, Sept. 28, 1987] ### Authority Authority: Sec. 107, Contract Work Hours and Safety Standards Act (40 U.S.C. 333); secs. 4, 6, 8, Occupational Safety and Health Act of 1970 (29 U.S.C. 653, 655, 657); Secretary of Labor's Order No. 12-71 (36 FR 8754), 8-76 (41 FR 25059), 9-83 (48 FR 35736), or 6-96 (62 FR 111), as applicable; and 29 CFR part 1911. ### Authority Authority: 40 U.S.C. 3704; 29 U.S.C. 653, 655, and 657; and Secretary of Labor's Order No. 12-71 (36 FR 8754), 8-76 (41 FR 25059), 9-83 (48 FR 35736), 1-90 (55 FR 9033), 6-96 (62 FR 111), 3-2000 (65 FR 50017), 5-2002 (67 FR 65008), 5-2007 (72 FR 31159), 4-2010 (75 FR 55355), 1-2012 (77 FR 3912), or 8-2020 (85 FR 58393), as applicable; and 29 CFR part 1911, unless otherwise noted Sections 1926.58, 1926.59, 1926.60, and 1926.65 also issued under 5 U.S.C. 553 and 29 CFR part 1911. Section 1926.61 also issued under 49 U.S.C. 1801-1819 and 5 U.S.C. 553. Section 1926.62 also issued under sec. 1031, Public Law 102-550, 106 Stat. 3672 (42 U.S.C. 4853). Section 1926.65 also issued under sec. 126, Public Law 99-499, 100 Stat. 1614 (reprinted at 29 U.S.C.A. 655 Note) and 5 U.S.C. 553. ### Source Source: 44 FR 8577, Feb. 9, 1979; 44 FR 20940, Apr. 6, 1979, unless otherwise noted. ### Amendments [44 FR 8577, Feb. 9, 1979; 44 FR 20940, Apr. 6, 1979, as amended at 52 FR 36382, Sept. 28, 1987]