The US Department of Education issues agency guidance documents that explain how laws and regulations relating to special education should be interpreted.
Policy letters provide written guidance and clarification regarding implementation of the IDEA. These letters are typically in response to specific questions raised by parents, educators, representatives of advocacy organizations, state educational agencies, early intervention programs and their providers, and other interested parties.
Policy Support Documents are broader written guidance in the form of memos, Dear Colleague Letters, or frequently asked questions (FAQ) documents.