<html xmlns="http://www.w3.org/1999/xhtml"><head><meta charset="UTF-8" /><title></title><meta name="Generator" content="PowerTools for Open XML" /><style>span { white-space: pre-wrap; } p.s79b41161-38d7-4923-9e9f-597ef2a9c89aP0 { margin-top: 0; margin-bottom: 0; margin-left: 0; margin-right: 0; text-indent: 0.00in; text-align: justify; background: white; font-family: Times; font-size: 12pt; line-height: 108%; } span.s79b41161-38d7-4923-9e9f-597ef2a9c89aC0 { background: white; font-family: Times; font-size: 12pt; font-style: normal; font-weight: normal; margin: 0; padding: 0; } span.s79b41161-38d7-4923-9e9f-597ef2a9c89aC0-000000 { color: #0000FF; background: white; font-family: Times; font-size: 12pt; font-style: normal; font-weight: bold; margin: 0; padding: 0; } span.s79b41161-38d7-4923-9e9f-597ef2a9c89aC0-000001 { background: white; font-family: Times; font-size: 12pt; font-style: normal; font-weight: bold; margin: 0; padding: 0; } span.s79b41161-38d7-4923-9e9f-597ef2a9c89a000002 { background: white; font-size: 12pt; font-style: normal; font-weight: normal; margin: 0; padding: 0; } span.s79b41161-38d7-4923-9e9f-597ef2a9c89aC0-000003 { background: white; font-family: 'Times New Roman', 'serif'; font-size: 12pt; font-style: normal; font-weight: normal; margin: 0; padding: 0; } span.s79b41161-38d7-4923-9e9f-597ef2a9c89aC0-000004 { color: #0000FF; background: white; font-family: Times; font-size: 12pt; font-style: normal; font-weight: normal; margin: 0; padding: 0; } </style></head><body><div><p dir="ltr" class="s79b41161-38d7-4923-9e9f-597ef2a9c89aP0"><span xml:space="preserve" class="s79b41161-38d7-4923-9e9f-597ef2a9c89aC0">    </span><a href="https://sdlegislature.gov/Rules?Rule=74:36:08:67"><span class="s79b41161-38d7-4923-9e9f-597ef2a9c89aC0-000000">74:36:08:67</span></a><span class="s79b41161-38d7-4923-9e9f-597ef2a9c89aC0-000001">.  National emission standards for hazardous air pollutants for petroleum refineries -- Catalytic cracking units, catalytic reforming units, and sulfur recovery units.</span><span xml:space="preserve" class="s79b41161-38d7-4923-9e9f-597ef2a9c89aC0"> The national emission standards for </span><span xml:space="preserve" class="s79b41161-38d7-4923-9e9f-597ef2a9c89aC0">hazardous air pollutants for petroleum refineries -- </span><span class="s79b41161-38d7-4923-9e9f-597ef2a9c89aC0">catalytic cracking</span><span xml:space="preserve" class="s79b41161-38d7-4923-9e9f-597ef2a9c89aC0"> units</span><span class="s79b41161-38d7-4923-9e9f-597ef2a9c89aC0">, catalytic reforming</span><span xml:space="preserve" class="s79b41161-38d7-4923-9e9f-597ef2a9c89aC0"> units</span><span xml:space="preserve" class="s79b41161-38d7-4923-9e9f-597ef2a9c89aC0">, and sulfur recovery units are those in 40 C.F.R. </span><span xml:space="preserve" class="s79b41161-38d7-4923-9e9f-597ef2a9c89aC0">Part </span><span class="s79b41161-38d7-4923-9e9f-597ef2a9c89aC0">63, Subpart UUU (July 1, 20</span><span class="s79b41161-38d7-4923-9e9f-597ef2a9c89aC0">24</span><span class="s79b41161-38d7-4923-9e9f-597ef2a9c89aC0">).</span></p><p dir="ltr" class="s79b41161-38d7-4923-9e9f-597ef2a9c89aP0"><span xml:space="preserve" class="s79b41161-38d7-4923-9e9f-597ef2a9c89a000002"> </span></p><p dir="ltr" class="s79b41161-38d7-4923-9e9f-597ef2a9c89aP0"><span xml:space="preserve" class="s79b41161-38d7-4923-9e9f-597ef2a9c89aC0">    </span><span class="s79b41161-38d7-4923-9e9f-597ef2a9c89aC0-000001">Source:</span><span xml:space="preserve" class="s79b41161-38d7-4923-9e9f-597ef2a9c89aC0"> 33 SDR 217, effective June 13, 2007; 36 SDR 207, effective June 28, 2010; 39 SDR 219, effective June 25, 2013; 42 SDR 52, effective October 13, 2015</span><span class="s79b41161-38d7-4923-9e9f-597ef2a9c89aC0-000003">; 44 SDR 43, effective September 13, 2017; 46 SDR 64, effective November 25, 2019</span><span class="s79b41161-38d7-4923-9e9f-597ef2a9c89aC0-000003">; 52 SDR 27, effective September 27, 2025</span><span class="s79b41161-38d7-4923-9e9f-597ef2a9c89aC0">.</span></p><p dir="ltr" class="s79b41161-38d7-4923-9e9f-597ef2a9c89aP0"><span xml:space="preserve" class="s79b41161-38d7-4923-9e9f-597ef2a9c89aC0">    </span><span class="s79b41161-38d7-4923-9e9f-597ef2a9c89aC0-000001">General Authority:</span><span xml:space="preserve" class="s79b41161-38d7-4923-9e9f-597ef2a9c89aC0"> SDCL </span><a href="https://sdlegislature.gov/Statutes?Statute=34A-1-6"><span class="s79b41161-38d7-4923-9e9f-597ef2a9c89aC0-000004">34A-1-6</span></a><span xml:space="preserve" class="s79b41161-38d7-4923-9e9f-597ef2a9c89aC0">, </span><a href="https://sdlegislature.gov/Statutes?Statute=34A-1-18"><span class="s79b41161-38d7-4923-9e9f-597ef2a9c89aC0-000004">34A-1-18</span></a><span class="s79b41161-38d7-4923-9e9f-597ef2a9c89aC0">.</span></p><p dir="ltr" class="s79b41161-38d7-4923-9e9f-597ef2a9c89aP0"><span xml:space="preserve" class="s79b41161-38d7-4923-9e9f-597ef2a9c89aC0">    </span><span class="s79b41161-38d7-4923-9e9f-597ef2a9c89aC0-000001">Law Implemented:</span><span xml:space="preserve" class="s79b41161-38d7-4923-9e9f-597ef2a9c89aC0"> SDCL </span><a href="https://sdlegislature.gov/Statutes?Statute=34A-1-18"><span class="s79b41161-38d7-4923-9e9f-597ef2a9c89aC0-000004">34A-1-18</span></a><span class="s79b41161-38d7-4923-9e9f-597ef2a9c89aC0">.</span></p><p dir="ltr" class="s79b41161-38d7-4923-9e9f-597ef2a9c89aP0"><span xml:space="preserve" class="s79b41161-38d7-4923-9e9f-597ef2a9c89a000002"> </span></p></div></body></html>