---
kind: "section"
citation: "23 C.F.R. § 657.13"
title: "23"
number: "657.13"
heading: "Certification requirement."
url: "https://uscodex.org/cfr/23/657.13"
---

# §657.13. Certification requirement.


Each State shall certify to the Federal Highway Administrator, before January 1 of each year, that it is enforcing all State laws respecting maximum vehicle size and weight permitted on what, prior to October 1, 1991, were the Federal-aid Primary, Secondary, and Urban Systems, including the Interstate System, in accordance with [23 U.S.C. 127](/usc/23/127.md). The States must also certify that they are enforcing and complying with the ISTEA freeze on the use of LCV's and other multi-unit vehicles. The certification shall be supported by information on activities and results achieved during the preceding 12-month period ending on September 30 of each year.


## Notes

### Amendments

[59 FR 30418, June 13, 1994]

### Authority

Authority: 23 U.S.C. 127, 141 and 315; 49 U.S.C. 31111, 31113 and 31114; sec. 1023, Pub. L. 102-240, 105 Stat. 1914; and 49 CFR 1.48(b)(19), (b)(23), (c)(1) and (c)(19).

### Source

Source: 45 FR 52368, Aug. 7, 1980; 62 FR 62261, Nov. 21, 1997, unless otherwise noted.

### Amendments

[59 FR 30418, June 13, 1994]