US lawIndianaRegulationsTitle 575 — State School Bus CommitteeArticle 1 — ARTICLE 1. MINIMUM SPECIFICATIONS FOR SCHOOL BUSESRule 9 — Type A, Type B, Type C, and Type D School Buses1-9-2575 IAC 1-9-2575 IAC 1-9-2 AisleLast amended: 2020Year: 2027Length: 15 wordsOfficial source Cite as Ind. Admin. Code tit. 575, r. 1-9-2Sec. 2. The width of the center aisle must be at least twelve (12) inches.Previous575 IAC 1-9-1Next575 IAC 1-9-3