1. (1) Installation and use.

   1. (a) General. This section applies to the fuel storage tanks of stationary combustion engines and gas turbines, except when used at a farm premises or construction project.

      Note: Stationary combustion engines under this section are commonly used to power emergency generators and pumps that provide fire protection. For requirements for storage tanks that are used to fuel stationary combustion engines at a farm premises or construction project, see s. ATCP 93.630.

   2. (b) Certified installer. Tank installation shall be performed or supervised by a certified installer.

      Note: See s. ATCP 93.100 (1) (b) 11. for criteria that can be used to exempt these tanks from plan review.

   3. (c) Marking.

      1. 1. Aboveground tanks with the fill point remote from the tank and all new and existing underground storage tanks shall have the fill point labeled with the type of fuel.
      2. 2. Aboveground storage tanks shall have the tank labeled with the type of fuel.
   4. (d) Aboveground storage tank systems located in buildings. Aboveground storage tank systems located in buildings and used to store fuel for stationary combustion engines and gas turbines shall comply with NFPA 20 and 37 chapter 6, and the fill connection shall be located outside the building.

   5. (e) Aboveground storage tank systems not located in a building.

      1. 1. Aboveground storage tank systems not located in a building and used to store fuel for stationary combustion engines and gas turbines shall comply with subch. IV and NFPA 20 and 37 chapter 6.
      2. 2. Storage tanks under this section that are within an enclosure which does not have enough non-mechanical, open-louver area in the lower portion of the walls or doors to prevent hazardous build-up of vapors shall have vents terminating outside of the enclosure. Any vent terminating through the roof of the enclosure shall extend high enough to prevent snow or ice build-up from impacting the operation of the vent.
   6. (f) Underground storage tank systems. Underground storage tank systems used to store fuel for stationary combustion engines and gas turbines shall comply with subch. V and NFPA 37 chapter 6.
2. (2) Spill and overfill prevention. Spill and overfill prevention shall be provided in accordance with s. ATCP 93.410.

3. (3) Tank closure and general administrative requirements.

   1. (a) Aboveground tanks. Aboveground tanks that store fuel for stationary combustion engines and gas turbines shall comply with ss. ATCP 93.440 to 93.470.

      Note: Sections ATCP 93.440 to 93.470 address inspections; seldom-used and temporarily out of service tanks; change in service to store a non-regulated substance; tank closures; tank system site assessments; and confirming and responding to leaks, spills, overfills and releases.

   2. (b) Underground tanks. Underground tanks that store fuel for stationary combustion engines and gas turbines shall comply with ss. ATCP 93.545 to 93.585.

      Note: Sections ATCP 93.545 to 93.585 address seldom-used and temporarily out of service tanks; change in service to store a non-regulated substance; tank system closures; conditions indicating releases; tank system integrity assessments; tank system site assessments; and responding to leaks, spills, overfills and releases.

History

History: CR 17-092: cr. Register October 2019 No. 766, eff. 11-1-19.