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§ 63.5701 What are my options for complying with the open molding emission limit?
You must use one or more of the options listed in paragraphs (a) through (c) of this section to meet the emission limit in § 63.5698 for the resins and gel coats used in open molding operations at your facility.
(a) Maximum achievable control technology (MACT) model point value averaging (emissions averaging) option. (1) Demonstrate that emissions from the open molding resin and gel coat operations that you average meet the emission limit in § 63.5698 using the procedures described in § 63.5710. Compliance with this option is based on a 12-month rolling average.