The revised Louisiana UST regulations, UT018, will become final and effective on September 20, 2018.


All of the regulations will become effective on September 20, 2018.

  • The specific requirements outlined below will have different compliance dates: Emergency power generator UST systems installed prior to August 9, 2009, will need to begin performing UST system release detection on or before September 20, 2021 (LAC 33:XI.101.A.1.b)
  • First monthly and annual walkthrough inspections will need to take place on or before September 20, 2021 (LAC 33:XI.513)
  • First three-year spill bucket testing, containment sumps used for interstitial monitoring testing, and overfill equipment inspections (LAC 33:XI.511)
    • Facilities in use before September 20, 2018, first test will need to take place on or before September 20, 2021
    • Facilities installed after September 20, 2018, first test will need to take place at installation
  • Annual shear valve testing (LAC 33:XI.515)
    • Facilities in use before September 20, 2018, first test will need to take place on or before September 20, 2021
    • Facilities installed after September 20, 2018, first test will need to take place at installation
  • Annual release detection equipment operation and maintenance testing will need to take place on or before September 20, 2021 (LAC 33:XI.703.A.2.d)
  • Airport hydrant systems and field-constructed tanks (LAC 33:XI.Chapter 8)
    • Facilities in use before September 20, 2018, all LAC 33:XI.Chapter 8 UST requirements before September 20, 2021
    • Facilities installed after September 20, 2018, all LAC 33:XI. Chapter 8 UST requirements apply at installation