As used in this chapter:

(1)  “Acceptable release rate” means a measured release rate not to exceed four (4.0) micrograms per square centimeter per day for weeks three (3) to five (5) and a cumulative release rate of one hundred sixty-eight (168) micrograms per square centimeter for the first fourteen (14) days as determined in accordance with the United States Environmental Protection Agency (EPA) testing procedure as outlined in the EPA data call-in notice of July 29, 1986, on tributyltin in antifoulant paints under the Federal Insecticide, Fungicide and Rodenticide Act, 7 U.S.C. § 136 et seq. If a lower release rate is determined by the department to be necessary to protect health or the environment, the rate if duly adopted by regulatory action of the department, shall be the acceptable release rate as defined in this section.

(2)  “Department” means the department of environmental management.

(3)  “Commercial boat yard” means any facility which engages for hire in the construction, storage, maintenance, repair, or refurbishing of vessels (other than seaplanes) or any licensed independent marine maintenance contractor who engages in those activities.

(4)  “Marine antifoulant paint” means any compound, coating, paint, or treatment applied or used for the purpose of controlling freshwater or marine fouling organisms on vessels.

(5)  “Tributyltin compounds” means any compound having three (3) normal butyl groups attached to a tin atom and with or without an anion such as chloride, fluoride, or oxide.

(6)  “Vessel” means every description of watercraft, other than a seaplane, used or capable of being used as a means of transportation on the water, whether self-propelled or otherwise, and includes barges and tugs.