41 C.F.R. § 301-10.112 What must I do when different airlines furnish the same service at different fares?
Title 41 - Public Contracts and Property Management
When there is no contract fare, and common carriers furnish the same service at different fares between the same points for the same type of accommodations, you must use the lowest cost service unless your agency determines that the use of higher cost service is more advantageous to the Government.
Title 41: Public Contracts and Property Management
PART 301–10—TRANSPORTATION EXPENSES
Subpart B—Common Carrier Transportation
Use of Contract City-Pair Fares
§ 301-10.112 What must I do when different airlines furnish the same service at different fares?