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Carbon Monoxide (1971) Federal Register Notice Classification Changes

Data is current as of August 31, 2019
Ordered by Classification

Click on the 'FR' link to view the Federal Register Notice


SERIOUS

Anchorage, AK
Reclassify from Moderate > 12.7 ppm to Serious
Proposed Approval 12/02/1997 62 FR 63687
Final Approval 06/12/1998 63 FR 32128 Effective: 07/13/1998

Denver-Boulder, CO
Reclassify from Moderate > 12.7 ppm to Serious
Proposed Approval 07/09/1996 61 FR 36004
Final Approval 03/10/1997 62 FR 10690 Effective: 04/09/1997

Fairbanks, AK
Reclassify from Moderate <= 12.7 ppm to Serious
Proposed Approval 08/08/1997 62 FR 42717
Final Approval 02/27/1998 63 FR 9945 Effective: 03/30/1998

Las Vegas, NV
Reclassify from Moderate > 12.7 ppm to Serious
Proposed Approval 06/26/1997 62 FR 34419
Final Approval 10/02/1997 62 FR 51604 Effective: 11/03/1997

Phoenix, AZ
Reclassify from Moderate <= 12.7ppm to Serious.
Proposed Approval 05/10/1996 61 FR 21415
Final Approval 07/29/1996 61 FR 39343 Effective: 08/28/1996

Spokane, WA
Reclassify from Moderate > 12.7 ppm to Serious
Proposed Approval 07/01/1996 61 FR 33879
Final Approval 03/12/1998 63 FR 12007 Effective: 04/13/1998


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