1. a) CFR (Code of Federal Regulations). Available from the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20401, (202) 783-3238:

   40 CFR 302.4 (2015)

2. b) This Section incorporates no later editions or amendments.

(Source: Amended at 40 Ill. Reg. 10312, effective July 13, 2016)