Section 326IAC2-5.5-1. Applicability

   (a) The following shall be exempt from the requirements of this rule:

(1) Existing sources that:

(A) meet the criteria for an exemption under 326 IAC 2-1.1-3; or

(B) are not specifically required to obtain a registration under this rule.

(2) Existing sources operating pursuant to one (1) of the following:

(A) A Part 70 permit under 326 IAC 2-7.

(B) A federally enforceable state operating permit (FESOP) under 326 IAC 2-8.

(C) A source specific operating agreement under 326 IAC 2-9.

(D) A permit by rule under 326 IAC 2-10.

(E) A permit by rule under 326 IAC 2-11.

(F) A minor source operating permit under 326 IAC 2-6.1.

  (b) On and after the effective date of this rule, this rule applies to the following existing sources:

(1) Sources with a potential to emit within the following ranges:

(A) Less than twenty-five (25) tons per year and equal to or greater than five (5) tons per year of either PM, PM₁₀, or direct PM_2.5.

(B) Less than twenty-five (25) tons per year and equal to or greater than ten (10) tons per year of the following pollutants:

(i) Sulfur dioxide (SO₂).

(ii) Nitrogen oxides (NO_x).

(C) Less than twenty-five (25) tons per year and equal to or greater than ten (10) tons per year of VOC for sources that are not described in clause (D).

(D) Less than twenty-five (25) tons per year and equal to or greater than five (5) tons per year of VOC for sources that require the use of air pollution control equipment to comply with the applicable provisions of 326 IAC 8.

(E) Less than one hundred (100) tons per year and equal to or greater than twenty-five (25) tons per year of carbon monoxide (CO).

(F) Less than five (5) tons per year and equal to or greater than two-tenths (0.2) ton per year of lead (Pb).

(G) Less than twenty-five (25) tons per year and equal to or greater than five (5) tons per year of the following regulated air pollutants:

(i) Hydrogen sulfide (H₂S).

(ii) Total reduced sulfur (TRS).

(iii) Reduced sulfur compounds.

(iv) Fluorides.

(2) Any existing source that:

(A) is subject to 326 IAC 20-8; and

(B) consists of only decorative chromium electroplating tanks that use a trivalent chromium process that incorporates a wetting agent.

  (c) No person subject to subsection (b) shall operate an existing source subject to this rule without registering the source with the commissioner. (Air Pollution Control Division; 326 IAC 2-5.5-1; filed Nov 25, 1998, 12:13 p.m.: 22 IR 1012; readopted filed Oct 22, 2004, 10:35 a.m.: 28 IR 792; readopted filed Aug 25, 2010, 2:42 p.m.: 20100922-IR-326100394BFA; filed Jun 11, 2012, 3:15 p.m.: 20120711-IR-326110251FRA)