Cornell Law School Law Information Institute:

1. 20 U.S.C. 1400: https://www.law.cornell.edu/uscode/text/20/1400

My Educational Solutions:

1. Least Restrictive Environment:

https://www.myeducationalsolutions.com/least-restrictive-environment-lre/

Understood.org:

1. Least Restrictive Environment: https://www.understood.org/en/school-learning/special-services/special-education-basics/least-restrictive-environment-lre-what-you-need-to-know

Forte Law Group:

1. Least Restrictive Environment: http://www.fortelawgroup.com/least-restrictive-environment-lre-mean/