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§ 63.11146 What are the applicability provisions and compliance dates?
(a) You are subject to this subpart if you own or operate a primary copper smelter that is an area source of hazardous air pollutant (HAP) emissions.
(b) This subpart applies to each new or existing affected source. The affected source is each primary copper smelter.
(1) An affected source is existing if you commenced construction or reconstruction of the affected source before October 6, 2006.