Regulations last checked for updates: Apr 29, 2024

Title 23 - Highways last revised: Jan 18, 2024
All TitlesTitle 23Chapter IPart 657Appendix Appendix to - Appendix to Part 657—Guidelines To Be Used in Developing Enforcement Plans and Certification Evaluation
Collapse to view onlyAppendix Appendix to - Appendix to Part 657—Guidelines To Be Used in Developing Enforcement Plans and Certification Evaluation
Table of Contents

authority: 23 U.S.C. 127,141; 49 U.S.C. 31111,31113; sec. 1023, Pub. L. 102–240, 105 Stat. 1914; and 49 CFR 1.48(b)(19), (b)(23), (c)(1) and (c)(19)
source: 45 FR 52368, Aug. 7, 1980; 62 FR 62261, Nov. 21, 1997, unless otherwise noted.
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