Intermodal Surface Transportation Efficiency Act

Intermodal Surface Transportation Efficiency Act of 1991
Long title	An act to develop a national intermodal surface transportation system, to authorize funds for construction of highways, for highway safety programs, and for mass transit programs, and for other purposes
Acronyms (colloquial)	ISTEA
Nicknames	Ice Tea
Enacted by	the 102nd United States Congress
Citations
Public law	Pub. L. 102–240
Statutes at Large	105 Stat. 1914
Codification
Titles amended	15 U.S.C.: Commerce and Trade; 23 U.S.C.: Highways; 26 U.S.C.: Internal Revenue Code; 33 U.S.C.: Navigation and Navigable Waters; 49 U.S.C.: Transportation;
Legislative history
	Introduced in the House as H.R. 2950 by Norman Mineta (D-CA) on July 18, 1991; Passed the House on October 23, 1991 (343-83); Passed the Senate on October 31, 1991 (unanimous consent, in lieu of S. 1204 passed June 19, 1991 91-7); Reported by the joint conference committee on November 27, 1991; agreed to by the House on November 27, 1991 (372-47) and by the Senate on November 27, 1991 (79-8); Signed into law by President George H. W. Bush on December 18, 1991;
Major amendments
	I-27 Numbering Act of 2023

The Intermodal Surface Transportation Efficiency Act of 1991 (ISTEA, /aɪsˈti/) is a United States federal law that posed a major change to transportation planning and policy, as the first U.S. federal legislation on the subject in the post-Interstate Highway System era.