CFR
- Title 1 - General Provisions
- Title 2 - Grants and Agreements
- Title 3 - The President
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- Title 16 - Commercial Practices
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- Title 18 - Conservation of Power and Water Resources
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- Title 20 - Employees' Benefits
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- Title 45 - Public Welfare
- Title 46 - Shipping
- Title 47 - Telecommunication
- Title 48 - Federal Acquisition Regulations System
- Title 49 - Transportation
- Title 50 - Wildlife and Fisheries
387.305—Combination vehicles.
The following combinations will be regarded as one motor vehicle for purposes of this part, (a) a tractor and trailer or semitrailer when the tractor is engaged solely in drawing the trailer or semitrailer, and (b) a truck and trailer when both together bear a single load.
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