<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.s11dee910-6371-40c6-ab28-3d822fe0c3edP0 { margin-top: 0; margin-bottom: 0; margin-left: 0; margin-right: 0; text-indent: 0.00in; text-align: justify; background: white; font-family: 'Times New Roman', 'serif'; font-size: 12pt; line-height: 108%; } span.s11dee910-6371-40c6-ab28-3d822fe0c3edC0 { background: white; font-family: 'Times New Roman', 'serif'; font-size: 12pt; font-style: normal; font-weight: normal; margin: 0; padding: 0; } span.s11dee910-6371-40c6-ab28-3d822fe0c3edC0-000000 { color: #0000FF; background: white; font-family: 'Times New Roman', 'serif'; font-size: 12pt; font-style: normal; font-weight: bold; margin: 0; padding: 0; } span.s11dee910-6371-40c6-ab28-3d822fe0c3edC0-000001 { background: white; font-family: 'Times New Roman', 'serif'; font-size: 12pt; font-style: normal; font-weight: bold; margin: 0; padding: 0; } span.s11dee910-6371-40c6-ab28-3d822fe0c3ed000002 { background: white; font-size: 12pt; font-style: normal; font-weight: normal; margin: 0; padding: 0; } span.s11dee910-6371-40c6-ab28-3d822fe0c3edC0-000003 { color: #0000FF; background: white; font-family: 'Times New Roman', 'serif'; font-size: 12pt; font-style: normal; font-weight: normal; margin: 0; padding: 0; } span.s11dee910-6371-40c6-ab28-3d822fe0c3edC2 { color: #0000FF; background: white; font-family: 'Times New Roman', 'serif'; font-size: 12pt; text-decoration: underline; font-style: normal; font-weight: normal; margin: 0; padding: 0; } </style></head><body><div><p dir="ltr" class="s11dee910-6371-40c6-ab28-3d822fe0c3edP0"><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">    </span><a href="https://sdlegislature.gov/Rules?Rule=24:06:07:04"><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0-000000">24:06:07:04</span></a><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0-000001">.  Heating and air conditioning systems. </span><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">A school bus must contain a heating system</span><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0"> installed in accordance with the section entitled "Heating and Air Conditioning Systems" on pages </span><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">53</span><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0"> to </span><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">57, inclusive,</span><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0"> of the </span><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">National School Transportation Specifications &amp; Procedures</span><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">,</span><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0"> May</span><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0"> 20</span><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">25</span><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0"> Revised Edition.</span><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0"> If an air conditioning system is installed on a school bus, it must be installed in accordance with these standards.</span></p><p dir="ltr" class="s11dee910-6371-40c6-ab28-3d822fe0c3edP0"><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3ed000002"> </span></p><p dir="ltr" class="s11dee910-6371-40c6-ab28-3d822fe0c3edP0"><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">    </span><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">In addition, the following standards apply to </span><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">each </span><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">school </span><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">bus type</span><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">:</span></p><p dir="ltr" class="s11dee910-6371-40c6-ab28-3d822fe0c3edP0"><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3ed000002"> </span></p><p dir="ltr" class="s11dee910-6371-40c6-ab28-3d822fe0c3edP0"><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">    (1)  The minimum installation for a Type A bus</span><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">, as defined on page 407 of the National School Transportation Specifications &amp; Procedures, May 2025 Revised Edition (NSTSP),</span><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0"> is one front fresh air heater, utilizing the manufacturer's standard heater with a defroster core and a driver's deflector, and one or more rear recirculating underseat heaters with a minimum of 38,000 BTUs;</span></p><p dir="ltr" class="s11dee910-6371-40c6-ab28-3d822fe0c3edP0"><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3ed000002"> </span></p><p dir="ltr" class="s11dee910-6371-40c6-ab28-3d822fe0c3edP0"><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">    (2)  The minimum installation for </span><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">a </span><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">Type B and C bus</span><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">, as defined on page 407 of the NSTSP,</span><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0"> is one left front fresh air heater with a defroster core and a driver's deflector with a minimum of 80,000 BTUs, one right cowl recirculating heater with a minimum of 50,000 BTUs</span><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">; and</span></p><p dir="ltr" class="s11dee910-6371-40c6-ab28-3d822fe0c3edP0"><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3ed000002"> </span></p><p dir="ltr" class="s11dee910-6371-40c6-ab28-3d822fe0c3edP0"><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">        (a)  If the bus has a capacity of less than fifty-nine passengers, a rear underseat recirculating heater with a minimum of 75,000 BTUs; or</span></p><p dir="ltr" class="s11dee910-6371-40c6-ab28-3d822fe0c3edP0"><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3ed000002"> </span></p><p dir="ltr" class="s11dee910-6371-40c6-ab28-3d822fe0c3edP0"><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">        (b)  If the bus has a capacity of fifty-nine or more passengers, two rear underseat recirculating heaters, or a combination of one midship heater and one rear recirculating heater. Each heater must have a minimum of 75,000 BTUs; and</span></p><p dir="ltr" class="s11dee910-6371-40c6-ab28-3d822fe0c3edP0"><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3ed000002"> </span></p><p dir="ltr" class="s11dee910-6371-40c6-ab28-3d822fe0c3edP0"><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">    (3)  </span><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">The minimum installation for a type D bus</span><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">, as defined on page 408 of the NSTSP,</span><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0"> is one front fresh air heater with a defroster core and </span><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">a </span><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">minimum of 80,000 BTUs, a driver</span><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">'</span><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">s underseat heater with a minimum of 14,000 BTUs, and</span></p><p dir="ltr" class="s11dee910-6371-40c6-ab28-3d822fe0c3edP0"><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3ed000002"> </span></p><p dir="ltr" class="s11dee910-6371-40c6-ab28-3d822fe0c3edP0"><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">        (a)  </span><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">If the bus has a capacity of less than fifty-nine passengers, a rear underseat recirculating heater with a minimum of 75,000 BTUs; or</span></p><p dir="ltr" class="s11dee910-6371-40c6-ab28-3d822fe0c3edP0"><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3ed000002"> </span></p><p dir="ltr" class="s11dee910-6371-40c6-ab28-3d822fe0c3edP0"><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">        (b)  </span><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">If the bus has a capacity of fifty-nine or more passengers, two rear underseat recirculating heaters, or a combination of one midship heater and one rear recirculating heater. Each heater must have a minimum of 75,000 BTUs</span><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">.</span></p><p dir="ltr" class="s11dee910-6371-40c6-ab28-3d822fe0c3edP0"><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3ed000002"> </span></p><p dir="ltr" class="s11dee910-6371-40c6-ab28-3d822fe0c3edP0"><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">    </span><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0-000001">Source:</span><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0"> 22 SDR 61, effective November 9, 1995; 30 SDR 181, effective May 20, 2004; 33 SDR 152, effective April 5, 2007; 38 SDR 58, effective October 17, 2011; 44 SDR 43, effective September 13, 2017</span><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">; 53 SDR 22, effective September 8, 2026</span><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">.</span></p><p dir="ltr" class="s11dee910-6371-40c6-ab28-3d822fe0c3edP0"><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">    </span><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0-000001">General Authority:</span><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0"> SDCL </span><a href="https://sdlegislature.gov/Statutes?Statute=13-29-6"><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0-000003">13-29-6</span></a><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">.</span></p><p dir="ltr" class="s11dee910-6371-40c6-ab28-3d822fe0c3edP0"><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">    </span><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0-000001">Law Implemented:</span><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0"> SDCL </span><a href="https://sdlegislature.gov/Statutes?Statute=13-29-6"><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0-000003">13-29-6</span></a><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">.</span></p><p dir="ltr" class="s11dee910-6371-40c6-ab28-3d822fe0c3edP0"><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3ed000002"> </span></p><p dir="ltr" class="s11dee910-6371-40c6-ab28-3d822fe0c3edP0"><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">    </span><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0-000001">Reference:</span><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0"> "School Bus Types," on page</span><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">s</span><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0"> </span><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">407 to 408,</span><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0"> and "Heating and Air Conditioning Systems," pages </span><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">53</span><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0"> to </span><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">57</span><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">, </span><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0-000001">National School Transportation Specifications &amp; Procedures</span><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">, </span><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">May 2025</span><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0"> Revised Edition</span><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">, National Conference of School Transportation</span><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">. Copies may be obtained from </span><a href="http://www.ncstonline.org/"><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC2">www.ncstonline.org</span></a><span class="s11dee910-6371-40c6-ab28-3d822fe0c3edC0">.</span></p><p dir="ltr" class="s11dee910-6371-40c6-ab28-3d822fe0c3edP0"><span xml:space="preserve" class="s11dee910-6371-40c6-ab28-3d822fe0c3ed000002"> </span></p></div></body></html>