REGULATIONS
Rulings
AD/CVD
Notices
HTSUS
U.S. Code
Regs
More
Ports
About
Updates
Apps
Larger font
Smaller font
CustomsMobile Pro
beta now open!
Apply for a FREE beta account. Spaces are limited so apply today.
SIGNUP FOR BETA
SEARCH
Sort by Rank
Titles Ascending
Titles Descending
10 per page
25 Result/page
50 Result/page
Regulations last checked for updates: Jan 18, 2025
Title 40 - Protection of Environment last revised: Dec 30, 2025
All Titles
Title 40
Chapter I
Part 67
Appendix Appendix C - Appendix C to Part 67—Computer Program
Collapse to view onlyAppendix Appendix C - Appendix C to Part 67—Computer Program
Table of Contents
authority:
Sec. 120 of the Clean Air Act, as amended,
42 U.S.C. 7420
,
unless
source:
45 FR 50117, July 28, 1980, unless otherwise noted.
.list_box li,p,.cm-search-info,.cm-search-detail,.abt span,.expand-collapse_top
Get the CustomsMobile app!