Interstate Transport Prongs 1 and 2 for the 2010 Sulfur Dioxide (SO2) Standard for Colorado, Montana, North Dakota, South Dakota and Wyoming
air-emissions · Rule · Published 2018-08-31 · Effective 2018-10-01 · CO · 83 FR 44500
Document
Document number
2018-18892
Federal Register citation
83 FR 44500
CFR reference
40 CFR 52
Type
Rule
Action
Final rule.
Category
air-emissions
Publication date
2018-08-31
Effective date
2018-10-01
State
CO
EPA docket
EPA-R08-OAR-2018-0109
Abstract
The Environmental Protection Agency (EPA) is approving portions of State Implementation Plan (SIP) submissions from Colorado, Montana, North Dakota, South Dakota and Wyoming addressing the Clean Air Act (CAA or Act) interstate transport SIP requirements for the 2010 sulfur dioxide (SO<INF>2</INF>) National Ambient Air Quality Standard (NAAQS). These submissions address the requirement that each SIP contain adequate provisions prohibiting air emissions that will have certain adverse air quality effects in other states. The EPA is approving portions of these infrastructure SIPs for the aforementioned states as containing adequate provisions to ensure that air emissions in the states will not significantly contribute to nonattainment or interfere with maintenance of the 2010 SO<INF>2</INF> NAAQS in any other state.