Unless specifically defined in the Texas Clean Air Act (TCAA) or in the rules of the commission, the terms used by the commission have the meanings commonly ascribed to them in the field of air pollution control. In addition to the terms which are defined by the TCAA, and in §101.1 of this title (relating to Definitions), the following words and terms, when used in this chapter, shall have the following meanings, unless the context clearly indicates otherwise.(1) Best available control technology (BACT)--An air pollution control method for a new or modified facility that through experience and research, has proven to be operational, obtainable, and capable of reducing or eliminating emissions from the facility, and is considered technically practical and economically reasonable for the facility. The emissions reduction can be achieved through technology such as the use of add-on control equipment or by enforceable changes in production processes, systems, methods, or work practice.(2) Dockside vessel--Any water-based transportation, platforms, or similar structures which are connected or moored to the land.(3) Dockside vessel emissions--Those emissions originating from a dockside vessel that are the result of functions performed by onshore facilities or using onshore equipment. These emissions include, but are not limited to:(A) loading and unloading of liquid bulk materials;(B) loading and unloading of liquified gaseous materials;(C) loading and unloading of solid bulk materials;(D) cleaning and degassing of liquid vessel compartments; and(E) abrasive blasting and painting.(4) Facility--A discrete or identifiable structure, device, item, equipment, or enclosure that constitutes or contains a stationary source, including appurtenances other than emission control equipment. A mine, quarry, well test, or road is not a facility.(5) Federally enforceable--All limitations and conditions which are enforceable by the United States Environmental Protection Agency (EPA), including:(A) those requirements developed under