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SIP-Related文档

The U.S. Environmental Protection Agency (EPA) develops 国家环境空气质量标准 to protect human health and the environment. DAQ需要制定长期规划文件，例如州实施计划（sip），以演示如何实现、维护和执行NAAQS。 在某一地区达到标准后，将制定一份重新指定请求和维修计划，以证明至少在今后10年期间将进行维修。 这些SIP和维护计划成为内华达州SIP的克拉克县部分。 DAQ also develops 运输合格计划, in collaboration with the Regional Transportation Commission of Southern Nevada (RTC), the MPO for Clark County, to address transportation conformity issues in Southern Nevada.

Currently, the Las Vegas Valley (Hydrographic Area 212) is classified as moderate nonattainment for the 2015 Ozone (O₃) NAAQS. Hydrographic Area 212 is an attainment area subject to a maintenance plan for the CO and 点₁₀ NAAQS. Hydrographic Areas 164A, 164B, 165, 166, 167, 212, 213, 214, 216, 217, and 218 (excluding the Moapa River Indian Reservation and the Fort Mohave Indian Reservation) are attainment areas subject to a maintenance plan for the 1997 O₃ NAAQS. Click here for a 地图 detailing Clark County's area designations.

可吸入颗粒物（点10）

The Las Vegas Valley (HA 212) within Clark County is a maintenance area for 点₁₀. DAQ于2012年8月提交了“重新指定申请及维护计划”。 2014年10月6日，EPA批准了我们的请求，并指定Clark县为达标区域，自2014年11月5日起生效。

DAQ submitted a SIP in 2001, which explains how the area will attain the NAAQS for 点₁₀. 该计划是所有污染控制策略、控制措施、排放清单、达标示范、州法规和地方法规实施的累积程序。 环保署对该计划的最终批准于2004年7月生效。

随后，DAQ于2007年6月提交了里程碑成就报告（MAR）。 The MAR documents Clark County’s attainment of the 24-hour 点₁₀ NAAQS. On August 3, 2010, EPA made the determination that the Las Vegas Valley was in attainment with the 点₁₀ NAAQS (75 / 45485), and the area was redesignated to attainment with the approval of the maintenance plan and designation request in October 2014.

一氧化碳（CO）

位于克拉克县的拉斯维加斯谷（HA 212）是CO. DAQ于2008年提交的重新指定请求和维护计划的维护区域。 2010年9月27日，EPA批准了我们的请求，并指定Clark县为达标区域，生效日期为2010年9月27日（75 FR 59090）。

DAQ于2000年提交了一份SIP，描述了使拉斯维加斯山谷符合CO NAAQS的控制措施和技术。 该计划已获得EPA批准，于2004年10月21日生效（69 FR 56351）。 On June 1, 2005, EPA issued a determination of attainment for the Las Vegas Valley CO nonattainment area (70 fr 31353). 2005年提交了对SIP的修订，以更新二氧化碳排放预算，使用EPA批准的运输一致性确定的最新模型（MOBILE6）。 该修订于2006年8月7日获得EPA批准（71 FR 44587）。

臭氧(O3)

2015年03 naaq

In September 2016, Clark County submitted its 地区指定建议 for the 2015 O₃ NAAQS, recommending that only certain portions of the County be designated as nonattainment. On December 20, 2017, EPA issued its 120天 designations letter for the 2015 O₃ NAAQS, identifying portions of the County to be designated as nonattainment. Subsequently, on February 23, 2018, Clark County, through the Nevada Division of Environmental Protection (NDEP), submitted a 修订建议 based on updated monitoring data. 该修订要求仅将拉斯维加斯山谷（HA 212）指定为未达标地区。

On June 4, 2018, EPA designated the Las Vegas Valley as a marginal nonattainment area for the 2015 O₃ NAAQS, effective August 3, 2018 (83 / 25776). Subsequently, on January 5, 2023, EPA issued a final rule determining that the Las Vegas Valley failed to attain the 2015 O₃ NAAQS by the applicable marginal nonattainment deadline. The rule reclassified the area as a moderate nonattainment area and established a new attainment deadline of August 3, 2024 (88 / 775). On October 18, 2023, EPA issued a final rule determining that the Las Vegas Valley failed to submit the required moderate nonattainment SIP by the submission deadline (88 for 71757)

2024年11月，DAQ提交了一份达标SIP，以解决中度未达标地区的规划要求，并解决EPA未能提交的调查结果。 SIP包括以下要素：排放清单、达标论证、不达标新源评审、15%的进度率、合理可行的控制措施（RACM）、合理可行的控制技术（RACT）、机动车检验和维修、应急措施以及机动车运输符合性排放预算。

On December 19, 2024, EPA issued a final rule determining that the Las Vegas Valley failed to attain the 2015 O₃ NAAQS by the applicable moderate nonattainment deadline. As a result, EPA reclassified the area as a serious nonattainment area, effective January 21, 2025, and set a new attainment deadline of August 3, 2027 (89 for 103657).

2008年3月

On May 21, 2012, EPA designated Clark County as attainment/unclassifiable for the 2008 O₃ NAAQS, effective July 20, 2012 (77 / 30088).

On June 12, 2013, DAQ enrolled in EPA's O₃ Advance program, a collaborative effort between EPA and air agencies aimed at preserving air quality in O₃ attainment areas. Participating agencies work with EPA to identify, evaluate, and implement measures and programs to reduce O₃ and continue making improvements in air quality. 每年提交进度报告，详细说明项目活动、成就和确定未来的项目目标。

1997年3月

An O₃ Early Progress Plan that provides the basis for establishing early transportation conformity budgets for the Clark County 8-hour O₃ nonattainment area was submitted to EPA in 2008, and approved in 2009. A Redesignation Request and Maintenance Plan for the 1997 8-hour O ₃ NAAQS was submitted in April 2011. On January 8, 2013, EPA approved our request and the Clark County nonattainment area was redesignated to attainment for the 1997 8-hour O₃ NAAQS, effective February 7, 2013.

基础设施SIP

联邦清洁空气法案要求各州在EPA颁布新的或修订现有NAAQS时准备基础设施sip (I-SIP)，并要求一个地区是否符合新标准。 根据这一要求，克拉克县准备了I-SIP的一部分，以证明它已经制定了实施、维护和执行NAAQS的计划。 这些I-SIP成为内华达州I-SIP的一部分。 I-SIP涉及以下空气质量计划要素：许可； 空气质量建模； 执行; 环境空气监测； 确认有足够的人员、资源和法律权威。

The Sulfur Dioxide (SO₂) NAAQS was revised in 2010 and the I-SIP was submitted to NDEP in May 2013 for inclusion as a revision to the Nevada SIP.

The O₃ NAAQS was revised in 2008 and the I-SIP was submitted to NDEP in February 2013 for inclusion as a revision to the NV SIP. The O₃ NAAQS was revised in 2015 and the I-SIP was submitted to NDEP in September 2018 for inclusion as a revision to the Nevada SIP.

The Nitrogen Dioxide (NO₂) NAAQS was revised in 2010 and the I-SIP was submitted to NDEP in December 2012 for inclusion as a revision to the Nevada SIP.

铅（Pb） NAAQS于2008年修订，I-SIP于2012年7月提交给NDEP，作为内华达州SIP的修订版。

In 2008, the Nevada Department of Environmental Protection (NDEP) submitted a consolidated I-SIP for the 1997 8-hour O₃ NAAQS, and the 1997 and 2006 NAAQS for 点_2.5. 这是NDEP、Washoe县卫生区和DAQ的共同努力。 2012年8月3日，EPA公布了一项批准I-SIP的拟议规则。 最终规定于2012年10月23日颁布。

运输一致性计划

运输一致性计划详细说明了当地、州和联邦机构在处理克拉克县运输一致性问题时必须遵循的咨询标准、政策和程序。 达克在2008年更新了该计划。 2008年7月，EPA发布了一项调查结果，认为运输合格计划符合40 CFR第51部分附录v的要求。随后，EPA于2008年11月发布了一项直接的最终规则。

For more information or questions about SIP文档, contact 普鲁特婀瑞思利 at (702) 455-3206.