Authority: IC 13-15-2-1; IC 13-17-3-4

Affected: IC 13-12-3-1

Sec. 1. (a) This rule applies to sources as provided in 40 CFR 63.5683*.

(b) The air pollution control board incorporates by reference 40 CFR 63, Subpart VVVV*, National Emission Standards for Hazardous Air Pollutants for Boat Manufacturing, except for the following gel coat applications in Table 2 to Subpart VVVV, 40 CFR 63*, Alternative Organic Hazardous Content Requirements for Open Molding Resin and Gel Coat Operations:

1. (1) 3. Pigmented gel coat operations.
2. (2) 4. Clear gel coat operations.
3. (3) 7. Tooling gel coat operations.

(c) A source shall use the following references or methods to estimate emissions:

1. (1) "Unified Emission Factors for Open Molding of Composites", July 2001*, except use of controlled spray emission factors must be approved by the commissioner and U.S. EPA.

2. (2) "Compilation of Air Pollution Emission Factors AP-42"*, as defined in 326 IAC 1-2-20.5, except emissions from hand layup and spray layup operations must be calculated using:

   1. (A) emission factors referenced in subdivision (1); or
   2. (B) site-specific values using information in subdivision (3).
3. (3) Site-specific values or other means of quantification provided the site-specific values and the emission factors are acceptable to the commissioner and the U.S. EPA.

*These documents are incorporated by reference. Copies may be obtained from the Government Printing Office, 732 North Capitol Street NW, Washington, D.C. 20401 or are available for review and copying at the Indiana Department of Environmental Management, Indiana Government Center-North, Tenth Floor, 100 North Senate Avenue, Indianapolis, Indiana 46204.

(Air Pollution Control Division; 326 IAC 20-48-1; filed Mar 25, 2003, 8:10 a.m.: 26 IR 2611; filed Apr 26, 2007, 9:38 a.m.: 20070523-IR-326060412FRA; filed Feb 25, 2008, 2:12 p.m.: 20080326-IR-326070307FRA; readopted filed Oct 18, 2024, 2:09 p.m.: 20241113-IR- 326230809RFA)