Authority: IC 22-13-2-2

Affected: IC 22-12; IC 22-13; IC 22-15; IC 36-7

Sec. 20. (a) "Underwater light" means a fixture designed to illuminate a pool from beneath the water surface, further defined as:

1. (1) "dry niche light" means a light unit placed behind a watertight window in the pool wall; or
2. (2) "wet niche light" means a watertight and water-cooled light unit placed in a submerged, wet niche in the pool wall and accessible only from the pool.

(b) "Upper distribution system" means those devices designed to distribute the water entering a permanent medium filter in a manner so as to prevent movement or migration of the filter medium. This system shall also properly collect water during filter backwashing unless other means are provided.

(c) "UV treatment" means an artificially generated ultraviolet light used as a sanitizer to supplement chemical treatment of the water. For the purpose of this document, it shall be UV-C or germicidal, wavelength of two hundred fifty-four (254) nanometers, producing minimum dosage of forty (40) mJ/cm2.

(Fire Prevention and Building Safety Commission; 675 IAC 20-1.1-20; filed Aug 14, 1989, 9:00 a.m.: 13 IR 45, eff Sep 1, 1989 [IC 4-22-2-36 suspends the effectiveness of a rule document for thirty (30) days after filing with the secretary of state. LSA Document #89-17 was filed Aug 14, 1989.]; readopted filed Sep 11, 2001, 2:49 p.m.: 25 IR 530; readopted filed Sep 21, 2007, 9:20 a.m.: 20071010-IR-675070388RFA; readopted filed Oct 10, 2007, 9:16 a.m: 20071031-IR-675070388RFA; filed Mar 25, 2011, 10:19 a.m.: 20110420-IR-675090789FRA; readopted filed Aug 7, 2013, 8:51 a.m.: 20130904-IR-675130181RFA; readopted filed Jul 2, 2019, 2:21 p.m.: 20190731-IR-675190264RFA; readopted filed Nov 18, 2025, 10:36 a.m.: 20251210-IR-675240566RFA)