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CFR > Title 49 - Transportation > SUBTITLE B—Other Regulations Relating to Transportation > CHAPTER V—NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (Parts 501–599) > PART 585—PHASE-IN REPORTING REQUIREMENTS > SUBPART F—Tires for Motor Vehicles with a GVWR of 10,000 Pounds or Less Phase-In Reporting Requirements (§585.51 to §585.56) > 585.52—Purpose.
585.52—Purpose.
The purpose of these requirements is to assist the National Highway Traffic Safety Administration in determining whether a manufacturer has complied with the requirements of Standard No. 139.