Carbon Monoxide Federal Register Notice
Clean Air/Attainment Determinations

Ordered by Classification
As of November 13, 2009

*Current Nonattainment Areas*

SERIOUS
Las Vegas, NV

Proposed Approval	01/21/2005	70 FR Page 3174
Final Approval	06/01/2005	70 FR Page 31353	Effective: 07/01/2005