CFR
- Title 1 - General Provisions
- Title 2 - Grants and Agreements
- Title 3 - The President
- Title 4 - Accounts
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- Title 48 - Federal Acquisition Regulations System
- Title 49 - Transportation
- Title 50 - Wildlife and Fisheries
301-10.164—When may I use extra-fare train service?
You may use extra-fare train service whenever your agency determines it is more advantageous to the Government or is required for security reasons. Extra-fare train service is considered to be a class above the lowest class offered on any particular train and must be authorized/approved as provided in § 301-10.162.
Code of Federal Regulations
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