cont....GBA:  "here's the summation of that "least restrictive appropriate educational environment" law: 

 Least Restrictive Environment (LRE) is the requirement in federal law that 
students with disabilities receive their education, to the maximum extent 
appropriate, with nondisabled peers and that special education students are not 
removed from regular classes unless, even with supplemental aids and services, 
education in regular classes cannot be achieved satisfactorily.  [20 United States 
Code (U.S.C.) Sec. 1412(a)(5)(A); 34 Code of Federal Regulations (C.F.R.) Sec. 
300.114.]  

regards, Gary Crum