least restrictive environment

A requirement of the Individuals with Disabilities Education Act that school districts place disabled children in the classroom setting that best meets their individual needs, rather than automatically assume that a special class or school is the best option. In many cases, the least restrictive environment, or LRE, is a regular classroom with nondisabled children (also known as mainstreaming), with additional services provided to help the disabled child succeed at school.

lawful permanent resident (LPR)

A lawful permanent resident is a non-citizen who has been granted authorization to live and work in the United States on a permanent basis. As proof of that status, a person is granted a permanent resident card, commonly called a "green card."

Lawful permanent residents may leave the U.S. multiple times and reenter, as long as they do not intend to stay outside the U.S. for 1 year or more. Staying outside of the country for more than one year (without a re-entry permit) may result in loss of permanent resident status.

United States Citizenship and Immigation Services,

Customs & Border Patrol,


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