Immigration Reform and Control Act of 1986 (IRCA),Public Law 99-603, 100 Stat. 3359 (enacted November 6, 1986)

An act of Congress passed into law to control and deter illegal immigration to the United States. Its major provisions stipulate legalization of undocumented aliens who had been continuously unlawfully present since 1982, legalization of certain agricultural workers, sanctions for employers who knowingly hire undocumented workers and increased enforcement at U.S. borders.