Authority: IC 22-13-2-8

Affected: IC 22-15-6

Sec. 5. (a) "Boiler" means a closed vessel in which water or other liquid is heated, steam or vapor is generated, steam is superheated, or any combination thereof, under pressure for use external to itself by the direct application of any source of energy. This definition does not include unfired pressure vessels as defined in section 50 of this rule. The term shall include the apparatus used to generate heat and all controls and safety devices associated with such apparatus or closed vessel.

(b) The term shall include, but is not limited to, the following:

1. (1) Exhibition traction engine boilers as defined in section 16 of this rule.
2. (2) Heaters as defined in section 18.2 of this rule.
3. (3) Heat recovery steam generators (HRSG boilers) as defined in section 18.3 of this rule.
4. (4) Historical boilers as defined in section 18.4 of this rule.
5. (5) Hot water heating boilers as defined in section 19 of this rule.
6. (6) Hot water supply boilers as defined in section 20 of this rule.
7. (7) Low pressure heating boilers as defined in section 27 of this rule.
8. (8) Miniature boilers as defined in section 29 of this rule.
9. (9) Model boilers as defined in section 30 of this rule.
10. (10) Modular boilers as defined in section 30.1 of this rule.
11. (11) Nonstandard boilers as defined in section 34 of this rule.
12. (12) Portable boilers as defined in section 38.2 of this rule.
13. (13) Power boilers as defined in section 39 of this rule.
14. (14) Steam cleaners as defined in section 49 of this rule.
15. (15) Waste heat boilers as defined in section 51 of this rule.

(Fire Prevention and Building Safety Commission; 675 IAC 30-4-5; filed Jan 5, 1996, 10:15 a.m.: 19 IR 1118; readopted filed Jul 9, 2001, 1:33 p.m.: 24 IR 3822; readopted filed Sep 21, 2007, 9:16 a.m.: 20071010-IR-680070389RFA; readopted filed Oct 19, 2007, 1:08 p.m.: 20071114-IR-680070389RFA; readopted filed Sep 5, 2013, 10:09 a.m.: 20131009-IR-680130182RFA; readopted filed Sep 4, 2019, 2:20 p.m.: 20191002-IR-675190336RFA; filed Apr 28, 2021, 11:03 a.m.: 20210526-IR-675200627FRA, eff Jul 1, 2021; readopted filed Nov 18, 2025, 10:36 a.m.: 20251210-IR-675240566RFA) NOTE: Transferred from the Boiler and Pressure Vessel Rules Board (680 IAC 2-4-5) to the Fire Prevention and Building Safety Commission (675 IAC 30-4-5) by P.L.249-2019, SECTION 15, effective July 1, 2019.