EPA maintains an active web site that can provide a vast range of information.
The EPA servers are available through the following routes:
World Wide Web (WWW): http://www.epa.gov
The WWW server has an on-line search mechanism to facilitate retrieval
of electronically posted documents at
Federal Registers from October 1994 to the present are available at the
Some of the most common document pathways are available beneath the
program area names.
CLEAN AIR ACT
Canada and Other Countries: enviroaccess.ca/eng/legal_www.html