Regulations last checked for updates: May 23, 2025

Title 40 - Protection of Environment last revised: Apr 23, 2028
§ 81.65 - Joplin (Missouri)-Northeast Oklahoma Interstate Air Quality Control Region.

The Joplin (Missouri)-Northeast Oklahoma Interstate Air Quality Control Region, designated on December 8, 1970, and consisting of the counties of Barton, Jasper, McDonald, and Newton in the State of Missouri and Craig, Delaware, and Ottawa in the State of Oklahoma, is revoked effective upon publication.

authority: 42 U.S.C. 7401,
source: 36 FR 22421, Nov. 25, 1971, unless otherwise noted.
cite as: 40 CFR 81.65