{"data":{"id":"us/23-cfr-657.1","jurisdiction":"us","citation":"23 CFR 657.1","heading":"Purpose.","body":"To prescribe requirements for administering a program of vehicle size and weight enforcement on the Interstate System, and those routes which, prior to October 1, 1991, were designated as part of the Federal-aid primary, Federal-aid secondary, or Federal-aid urban systems, including the required annual certification by the State.","path":["Title 23—Highways","CHAPTER I—FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","SUBCHAPTER G—ENGINEERING AND TRAFFIC OPERATIONS","PART 657—CERTIFICATION OF SIZE AND WEIGHT ENFORCEMENT"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-23.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:50Z","sha256":"733962c2d2609bc0cd9c30976bc097bb3e90786f06297a9a7eeecceca8d60be5","source_id":"us-cfr","stale":true,"prev":"us/23-cfr-656.7","next":"us/23-cfr-657.3"},"notice":"GroundRules: Original legal text. Not legal advice."}