Specialized definitions.

For the purpose of this subpart: (a) The general definitions, abbreviations, and methods of analysis set forth in part 401 of this chapter and the specialized definitions set forth in § 419.11 shall apply. (b) The term petrochemical operations shall mean the production of second-generation petrochemicals ( i.e. , alcohols, ketones, cumene, styrene, etc.) or first generation petrochemicals and isomerization products ( i.e. , BTX, olefins, cyclohexane, etc.) when 15 percent or more of refinery production is as first-generation petrochemicals and isomerization products.