Approval and Promulgation of Air Quality Implementation Plans; Nevada; Regional Haze State Implementation Plan for the Second Implementation Period
Published Date: 2/6/2026
Rule
Summary
The EPA is giving a thumbs-up to Nevada’s updated plan to keep the air clear and protect beautiful natural spots from haze for the next few years. This plan affects businesses and communities in Nevada by setting rules to reduce pollution that clouds the air, with the new rules kicking in on March 9, 2026. It’s all about making sure we can see those stunning views while keeping the air healthy—no big costs announced, just cleaner skies ahead!
Analyzed Economic Effects
4 provisions identified: 2 benefits, 2 costs, 0 mixed.
Three Nevada Plants' Permit Conditions Federalized
On March 9, 2026, specific permit conditions for three Nevada facilities become federally enforceable as part of the Nevada State Implementation Plan (SIP). The affected permits are: NDEP Permit AP4911-0194.04 (Tracy Generating Station) with conditions IV.B.1.a; IV.B.3.f; IV.D.1.a; IV.D.3.f; IV.F.1; IV.L.1.a; IV.L.3.g; IV.M.1.a; IV.M.3.g; V.A; and V.C.; Clark County Authority to Construct Permit for Lhoist North America Apex Plant (Source ID: 3) with conditions 2.1.1; 2.2.1; 2.2.2; 2.2.3; 3.2.1; 3.2.2; 4.1; 4.3; 4.4.7; 4.4.8; 4.4.15; and 4.4.16; and NDEP Permit AP3274-1329.03 (Graymont Pilot Peak Plant) with conditions IV.K.1.a; IV.K.3.b; IV.K.4.q; IV.K.4.u; IV.N.1.a; IV.N.3.b; IV.N.4.q; IV.N.4.u; V.S.1.a; IV.S.3.b; IV.S.4.q; IV.S.4.u; and V.B-C.
State-Chosen Controls for Stationary Sources Approved
Nevada identified and selected several existing and new control measures for stationary sources as necessary to make reasonable progress on regional haze, and the EPA approved those measures for the second planning period. The EPA stated Nevada considered the four statutory factors in CAA section 169A(g)(1) when selecting those controls, and the approval is effective March 9, 2026.
EPA Approval Adds No New Federal Burdens
The EPA says this action merely approves Nevada law as meeting federal requirements and does not impose additional requirements beyond those imposed by state law. The EPA also certified that the action does not have a significant economic impact on a substantial number of small entities under the Regulatory Flexibility Act.
SIP Approval Does Not Apply on Indian Reservation Land
The EPA states this SIP approval is not approved to apply on any Indian reservation land or in areas where a Tribe has demonstrated jurisdiction. In those areas of Indian country, the rule does not have Tribal implications and will not impose substantial direct costs on Tribal governments or preempt Tribal law.
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Key Dates
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