Environmental research usually begins with secondary sources, then statutes, and then moves to the regulations. You can find the rules under which the Environmental Protection Agency operates in Title 40 of the Code of Federal Regulations. KF 70.A3 C63 In addition to the EPA, the Department of the Interior, the Department of Agriculture, the Occupational Safety and Health Administration and other agencies have their own sets of regulations.
In addition to print books, a breadth of information can be found through our online resources. See a librarian for more specific help.