SIP Status Reports

You are here: EPA Home > Air Quality Implementation Plans > SIP Status Reports > Status of Nevada Designated Areas

Status of Nevada Designated Areas

Nevada Areas by NAAQS
NOTE: As of 03/12/2021, these reports are no longer being updated. For the latest information, see the SIP Status Tools.

Jump to Nevada section for: CO (1971) Lead (1978) Lead (2008) NO2 (1971) Ozone-1Hr (1979) Ozone-8Hr (1997) Ozone-8Hr (2008) Ozone-8Hr (2015) PM-10 (1987) PM-2.5 (1997) PM-2.5 (2006) PM-2.5 (2012) SO2 (1971) SO2 (2010)

Nevada CO (1971) Areas Return to map
Click on the Area name to view SIP Required Elements Area	Status	Designation Date	Classification	2010 Population (state portion)	Meets NAAQS Basis	Design Value Annual (ppm) (entire area)	Meets NAAQS	SIP Requirements Original/ Approved	Clean Air Determination Citation Effective Date Click to view FR notice	Redesignation Request Date	Redesignation Citation Effective Date Click to view FR notice
Lake Tahoe Nevada Area	Maintenance	11/15/1990	Not Classified	33,259	2019		No Data	1 / 0		10/27/2003	02/13/2004 68 FR 69611
Las Vegas Area	Maintenance	11/15/1990	Serious	679,034	2019	2.8	Yes	6 / 6		09/18/2008	09/27/2010 75 FR 59090
Reno Area	Maintenance	11/15/1990	Moderate <= 12.7ppm	221,743	2019	1.6	Yes	4 / 3			08/04/2008 73 FR 38124
Nevada Lead (1978) Areas Return to map Top of page
No designated areas for this pollutant.
Nevada Lead (2008) Areas Return to map Top of page
No designated areas for this pollutant.
Nevada NO2 (1971) Areas Return to map Top of page
No designated areas for this pollutant.
Nevada Ozone-1Hr (1979) Areas Return to map Top of page
Click on the Area name to view SIP Required Elements Area	Status	Designation Date	Classification	2010 Population (state portion)	Meets NAAQS Basis	Design Value Annual (ppm) (entire area)	Meets NAAQS	SIP Requirements Original/ Approved	Clean Air Determination Citation Effective Date Click to view FR notice	Redesignation Request Date	Redesignation Citation Effective Date Click to view FR notice
Reno Area	Nonattainment (NAAQS revoked)	01/06/1992	Marginal	421,407	2017-2019	0.089	Yes	3 / 2	06/02/2005 70 FR 22803	04/02/1997
Nevada Ozone-8Hr (1997) Areas Return to map Top of page
Click on the Area name to view SIP Required Elements Area	Status	Designation Date	Classification	2010 Population (state portion)	Meets NAAQS Basis	Design Value Annual (ppm) (entire area)	Meets NAAQS	SIP Requirements Original/ Approved	Clean Air Determination Citation Effective Date Click to view FR notice	Redesignation Request Date	Redesignation Citation Effective Date Click to view FR notice
Las Vegas	Maintenance (NAAQS revoked)	09/13/2004	Subpart 2/Marginal	1,918,819	2017-2019	0.073	Yes	3 / 3	05/31/2011 76 FR 17343	04/11/2011	02/07/2013 78 FR 1149
Nevada Ozone-8Hr (2008) Areas Return to map Top of page
No designated areas for this pollutant.
Nevada Ozone-8Hr (2015) Areas Return to map Top of page
Click on the Area name to view SIP Required Elements Area	Status	Designation Date	Classification	2010 Population (state portion)	Meets NAAQS Basis	Design Value Annual (ppm) (entire area)	Meets NAAQS	SIP Requirements Original/ Approved	Clean Air Determination Citation Effective Date Click to view FR notice	Redesignation Request Date	Redesignation Citation Effective Date Click to view FR notice
Las Vegas	Nonattainment	08/03/2018	Marginal	1,892,250	2017-2019	0.073	No	3 / 0
Nevada PM-10 (1987) Areas Return to map Top of page
Click on the Area name to view SIP Required Elements Area	Status	Designation Date	Classification	2010 Population (state portion)	Meets NAAQS Basis	Average Estimated Exceedances (est. exc.) (entire area)	Meets NAAQS	SIP Requirements Original/ Approved	Clean Air Determination Citation Effective Date Click to view FR notice	Redesignation Request Date	Redesignation Citation Effective Date Click to view FR notice
Clark County; Las Vegas planning area	Maintenance	11/15/1990	Serious	1,951,248	2017-2019	0.7	Yes	3 / 3	10/04/2010 75 FR 45485		11/05/2014 79 FR 60078
Washoe County; Reno planning area	Maintenance	02/07/2001	Serious	421,404	2017-2019	0.0	Yes	3 / 2	05/19/2011 76 FR 21807	11/07/2014	01/07/2016 80 FR 76232
Nevada PM-2.5 (1997) Areas Return to map Top of page
No designated areas for this pollutant.
Nevada PM-2.5 (2006) Areas Return to map Top of page
No designated areas for this pollutant.
Nevada PM-2.5 (2012) Areas Return to map Top of page
No designated areas for this pollutant.
Nevada SO2 (1971) Areas Return to map Top of page
Click on the Area name to view SIP Required Elements Area	Status	Designation Date	Classification	2010 Population (state portion)	Meets NAAQS Basis	Design Value Annual/24-Hr (ppb) (entire area)	Meets NAAQS	SIP Requirements Original/ Approved	Clean Air Determination Citation Effective Date Click to view FR notice	Redesignation Request Date	Redesignation Citation Effective Date Click to view FR notice
Central Steptoe Valley	Maintenance	11/15/1990		2,165		/		1 / 1		02/14/1995	06/11/2002 67 FR 17939
Nevada SO2 (2010) Areas Return to map Top of page
No designated areas for this pollutant.

We have made our best effort to ensure that the data contained in these reports is accurate. We note that there may be brief delays in updating the reports as we receive new state submissions and we take rulemaking action on plans. In order to assist us in providing accurate information, we request that you contact us by clicking on the "Contact Us" link near the top of this page with any comments regarding or corrections to the posted information, including concerns about whether the entries reflect the most recent status.

Current and historical design value data can be found on the EPA Air Quality Design Values website and the EPA Green Book contains comprehensive nonattainment area, designation status, and historical information.

The level of the 1-hour NAAQS for sulfur dioxide is 75 parts per billion (ppb) calculated as the 3-year average of the 99th percentile of the annual distribution of daily maximum 1-hour average concentrations.