Section 575 IAC 1-2.5-51 - UndercoatingAuthority: IC 20-27-3-4
Affected: IC 20-27-9
Sec. 51.
(a) The entire underside of the bus body, including all floor sections, cross members, and below floor side panels must be coated with a rust-proofing compound for which the compound manufacturer has issued a notarized certification to the body builder that the compound meets or exceeds all performance and qualitative requirements of Federal Specifications TT-C-520b, using modified test procedures for the following specifications: (1) Salt spray resistance-pass test modified to five percent (5%) salt and 1,000 hours.(2) Abrasion resistance-pass.(3) Fire resistance-pass.(b) The undercoating compound must be applied with airless or conventional spray equipment to the recommended film thickness and show no evidence of voids in cured film. Undercoating must prevent rust for at least five (5) years. All materials must be asbestos-free. State School Bus Committee; 575 IAC 1-2.5-51; filed Jun 20, 1988, 8:50 am: 11 IR 3854; readopted filed Oct 10, 2001, 3:37 p.m.: 25 IR 938; readopted filed Jun 19, 2007, 10:10 a.m.: 20070704-IR-575070225RFA; readopted filed Nov 12, 2013, 11:21 a.m.: 20131211-IR-575130420RFA