| Federal-Aid Highway Act of 1973 | |
|---|---|
 93rd United States Congress | |
| Congress | |
| Citation | Public Law 93–87; 87 Stat. 250 pdf |
| Enacted by | Congress |
| Signed | August 13, 1973 |
| Summary | |
| Reauthorization of Interstate Highway System funding for five years; funded urban and rural primary and secondary road construction for three years; permitted diversion of highway construction funds to mass transit; established first highway safety improvement program and first national speed limit | |
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The Federal-Aid Highway Act of 1973 (Public Law 93–87; 87 Stat. 250) is legislation enacted by the United States Congress and signed into law on August 13, 1973, which provided funding for existing interstate and new urban and rural primary and secondary roads in the United States. It also funded a highway safety improvement program, and permitted states for the first time in U.S. history to use Highway Trust Fund money for mass transit. The law also established the first national speed limit (of 55 miles per hour (89 km/h)).