This Subpart covers historical boilers, including steam tractors, traction engines, hobby steam boilers, portable steam boilers, and other boilers that require inspection under the definition of historical boilers. This Subpart is to be enforced in accordance with the requirements of the National Board Inspection Code (NBIC), Part 2, Section 6, Supplement 2 – Historical Boilers, unless excepted.

(Source: Amended at 42 Ill. Reg. 13457, effective July 1, 2018)