Regional -To ensure that archival resource collections of Government documents remain available throughout the United States. In return for receiving Government material at no cost, the Selective depository libraries must make the information available to the public, and provide appropriate assistance to users. The public has a right to information contained in Government documents, which have been published at public expense; the Government has an obligation to ensure availability of, and access to, these documents at no cost. These documents are a permanent source of Federal information.