CFR
- Title 1 - General Provisions
- Title 2 - Grants and Agreements
- Title 3 - The President
- Title 4 - Accounts
- Title 5 - Administrative Personnel
- Title 6 - Domestic Security
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- Title 18 - Conservation of Power and Water Resources
- Title 19 - Customs Duties
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- Title 48 - Federal Acquisition Regulations System
- Title 49 - Transportation
- Title 50 - Wildlife and Fisheries
57.4057—Underground trailing cables.
Underground trailing cables shall be accepted or approved by MSHA as flame resistant.
Code of Federal Regulations
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