Create Query Selection Criteria
To query the ADI database, select from any or all of the following search criteria. Use the User's Guide for information about Creating a Query.

Recent Update:
Category: EPA Office:
Date Range:
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Letter Author: You may enter the EPA author's last name below. We recommend searching for the letter author using this approach. The word search feature (below) does not necessarily produce accurate results for author's name.
Word Search: You may enter up to 10 search strings separated by commas. (,)
Asbestos, Part 61 - Subpart M
CFC, Part 82 - Subpart F
MACT, Part 63
NESHAP, Part 61
NSPS, Part 60
Woodstoves, Part 60 - Subpart AAA
Reference: Numbers in the list refer to sections of the Clean Air Act and regulations at 40 CFR. Reference Test Methods / CEM Performance Specifications are also included where specified.