16 C.F.R. § 309.12 Recordkeeping.
Title 16 - Commercial Practices
You must keep for one year records of how you determined fuel ratings. The records must be available for inspection by Federal Trade Commission staff members, or by people authorized by FTC.
Title 16: Commercial Practices
PART 309—LABELING REQUIREMENTS FOR ALTERNATIVE FUELS AND ALTERNATIVE FUELED VEHICLES
Subpart B—Requirements for Alternative Fuels
Duties of Importers, Producers, and Refiners of Non-Liquid Alternative Vehicle Fuels (Other Than Electricity) and of Manufacturers of Electric Vehicle Fuel Dispensing Systems
§ 309.12 Recordkeeping.
