ATCP 93.050(18)(18) “Certified cathodic protection tester” means a person certified in accordance with this chapter who demonstrates an understanding of the principles and measurements of all common types of cathodic protection systems as applied to buried or submerged metal piping systems and metal tanks.

ATCP 93.050(19)(19) “Certified corrosion expert” means a person certified in accordance with this chapter who is qualified to engage in the practice of corrosion control on buried or submerged metal piping systems and metal tanks by reason of thorough knowledge of the physical sciences and the principles of engineering and mathematics acquired by a professional education and related practical experience.

ATCP 93.050(21)(21) “Certified installer” means either of the following:

ATCP 93.050(21)(a)(a) For aboveground tank systems, a person certified in accordance with this chapter to install and repair aboveground storage tank systems — and for underground tank systems, a person certified in accordance with this chapter to install and repair underground storage tank systems.

ATCP 93.050(21)(b)(b) A registered professional engineer who directly supervises an installation by being present during the activities specified in s. ATCP 93.240 (16) and (17), and who is competent in the engineering methods and requirements in Wisconsin for designing and installing storage tank systems for flammable, combustible or hazardous liquids.

ATCP 93.050(22)(22) “Certified remover-cleaner” means a person certified in accordance with this chapter to remove storage tank systems and to remove accumulated sludge and remaining product from tanks that are to be closed, undergo a change in service, or otherwise be completely emptied and made inert.

ATCP 93.050(22m)(22m) “Certified tank system inspector” means a person certified in accordance with this chapter to inspect storage tank systems.

ATCP 93.050(23)(23) “Certified tank system liner” means a person certified in accordance with this chapter to install interior linings for storage tanks.

ATCP 93.050(24)(24) “Certified tank system site assessor” means a person certified in accordance with this chapter to conduct tank system site assessments and to collect samples necessary for those assessments.

ATCP 93.050(25)(25) “Certified tank system tightness tester” means a person certified in accordance with this chapter to perform precision tightness testing to determine the presence of leaks in storage tank systems.

ATCP 93.050(26)(26) “Change in service” means continued use of a storage tank system in another regulated status, or continued use of a tank that previously stored a regulated substance, to store a non-regulated substance; or continued use of a tank that previously stored a non-regulated substance, to store a regulated substance.

ATCP 93.050 NoteNote: An example of a “change in service” to another regulated status is an in-use tank that moves to temporarily out of service status. An example of “change in service” resulting from previously storing a regulated substance, to storing a non-regulated substance is a tank that is converted from storing heating oil to storing water.

ATCP 93.050(27)(27) “Class I liquid” means a flammable liquid.

ATCP 93.050(28)(28) “Cleaned tank system” means a tank system that is free of all residue and vapors.

ATCP 93.050(29)(29) “Closure” means the procedure by which a tank system is evaluated and permanently rendered safe from contributing to human danger, fire, explosion, and environmental contamination at the facility where it is installed.

ATCP 93.050(30)(30) “Combustible liquid” means a liquid having a flash point at or above 100°F.

ATCP 93.050 NoteNote: Under NFPA 30 section 4.3.2, combustible liquids are further classified as being Class II, IIIA, or IIIB liquids.

ATCP 93.050(31)(31) “Connected piping” means all underground piping including valves, elbows, joints, flanges, and flexible connectors attached to a tank system through which regulated substances flow. For the purpose of determining how much piping is connected to any individual underground storage tank system, the piping that joins 2 underground storage tank systems should be allocated equally between them.

ATCP 93.050(32)(32) “Construction project” means a site or project that is under development, renovation, or demolition and is temporary in nature and has restricted public access.

ATCP 93.050 NoteNote: A construction project may involve a transportation corridor, building or structure, excavation or landscaping, or the replacement or upgrade of an existing storage tank system.

ATCP 93.050(33)(33) “Consumptive use” means consumed on the premises where the storage tank system is located.

ATCP 93.050(34)(34) “Continuous monitoring” means a leak detection method using equipment that routinely performs the required monitoring on a periodic or cyclic basis throughout each day.

ATCP 93.050(35)(35) “Contractor” means a person or firm undertaking to do work or supply goods or a service.

ATCP 93.050(36)(36) “Day” means any calendar day unless specifically stated otherwise in this chapter.

ATCP 93.050(37)(37) “Department” means the department of agriculture, trade and consumer protection.

ATCP 93.050(37m)(37m) “Direct supervision” means to assume the responsibility of an activity of others and its results by providing oversight and guidance at the site where the activity is being conducted.

ATCP 93.050(38)(38) “Dispenser” means a device or configuration of components consisting of a motor or fluid control, and an area for storing a hose nozzle valve with or without a pump, that dispenses and measures the amount of product dispensed by means of a mechanical or electronic metering mechanism.

ATCP 93.050(39)(39) “Dispensing” means the transfer of fuel into a vehicle or portable container from a storage tank system.