The EMC provides technical expertise and guidance specific to the implementation of the emission testing methods.
US EPA Office of Air Quality and Planning Standards
This US EPA web site is a rich resource for information on all aspects of air quality, both in technical language for environmental professionals and in plain English for lay people.
Title 40 CFR Electronic Documents
In 2000, the Office of the Federal Register (OFR) and the Government Printing Office created the Electronic Code of Federal Regulations (e-CFR) prototype. The OFR updates the e-CFR prototype on a frequent basis, providing the public with up-to-date access.
Federal Register Environmental Documents
The Federal Register is the daily publication for rules, proposed rules, and notices of Federal Agencies.
Aerometric Information Retrieval Service (AIRS)
AIRS is the world