1. (1) General requirements.

   1. (a) Wellhead Protection. Persons are advised that Chapter 62-521, F.A.C., contains restrictions regarding the location of storage tank systems within 500 feet of a potable water well.

   2. (b) Secondary containment.

      1. The materials used for secondary containment shall be:

      a. Impervious to the regulated substance being stored in the storage tank system and able to withstand deterioration from external environmental conditions,

      b. Non-corrosive or of corrosion-protected materials or technologies; and,

      c. Of sufficient thickness and strength to withstand hydrostatic forces at maximum capacity to prevent a discharge.

      2. For cathodically protected tanks and integral piping, secondary containment systems shall not interfere with the operation of the cathodic protection system.

      3. Secondary containment systems shall be designed and installed to direct any release to a monitoring point or points.

      4. If factory-made single-walled spill containment systems or single-walled sumps are installed on the system, a containment integrity test shall be performed before the component is placed into service in accordance with the manufacturer’s testing requirements. For system components without manufacturer containment integrity testing specifications, PEI/RP1200-19, 2019 Edition shall be used. PEI RP1200-19 is the Recommended Practices for the Testing and Verification of Spill, Overfill, Leak Detection and Secondary Containment Equipment at UST Facilities, hereby adopted and incorporated by reference and, as a copyright protected document, is available for inspection at the Department of Environmental Protection or the Department of State address provided in subsection 62-761.210(1), F.A.C., or the publisher at PEI, Post Office Box 2380, Tulsa, Oklahoma 74101-2380, (918)494-9696, or the publisher’s website at www.pei.org/. For field-fabricated components the tests shall be at least for 24 hours in accordance with manufacturer’s requirements.

      5. An interstitial integrity test shall be performed on the storage tank after it is delivered and installed at the facility and before the storage tank is placed into service. This test shall be performed in accordance with manufacturer’s requirements. For storage tanks without manufacturer’s interstitial integrity testing specifications, PEI/RP100-20, 2020 Edition shall be used. PEI/RP100-20 is hereby adopted and incorporated by reference and, as a copyright protected document, is available for inspection at the Department of Environmental Protection or the Department of State address provided in subsection 62-761.210(1), F.A.C., or the publisher at PEI, Post Office Box 2380, Tulsa, Oklahoma 74101-2380, (918)494-9696, or the publisher’s website at www.pei.org/: Recommended Practices for Installation of Underground Liquid Storage Systems, PEI/RP100-20, 2020 Edition; and PEI/RP1200-19, 2019 Edition.

      6. An interstitial integrity test shall be performed on integral piping in accordance with PEI/RP100-20, 2020 Edition, and PEI/RP1200-19, 2019 Edition, before the integral piping is placed into service.

      7. If double-walled spill containment systems or double-walled sumps are installed on the system, an interstitial integrity test shall be performed in accordance with the manufacturer’s testing requirements. For system components without manufacturer interstitial integrity testing specifications, PEI/RP1200-19, 2019 Edition shall be used before the component is placed into service.

   3. (c) Cathodic protection.

      1. Test stations. Cathodic protection systems shall be designed, constructed, and installed with test stations in accordance with NACE standards contained in paragraph 62-761.210(2)(f), F.A.C. Cathodic protection test stations shall provide direct access to the soil electrolyte in close proximity to each cathodically protected structure for placement of reference electrodes, and monitoring wires that connect directly to cathodically protected structures. Facilities where direct access to soil in close proximity to cathodically protected structures is present, and where electrical connections to cathodically protected structures can be conveniently accomplished, need not have separate dedicated cathodic protection test stations.

      2. The cathodic protection system shall be operated and maintained in accordance with subsection 62-761.700(2), F.A.C.

      3. Any field-installed cathodic protection system shall be designed and installed by or under the direction of a Corrosion Professional.

      4. Cathodic protection is not required for any field-fabricated primary storage tank that has been installed within a former single-walled storage tank as a means to upgrade to secondary containment. However, the former single-walled storage tank, which has now become the secondary containment must be protected from corrosion.

      5. Supplemental anodes that are added to a sti-P3® tank after, January 11, 2017, shall be installed in accordance with the following document, regardless of the date of installation of the storage tank system or storage tank system component: Recommended Practice for the Addition of Supplemental Anodes to sti-P3® USTs, STI R972, Revised December 2010, hereby adopted and incorporated by reference, and available from the publisher at STI, 944 Donata Court, Lake Zurich, Illinois 60047, (847)438-8265, or from the publisher’s website at https://www.steeltank.com/, or the Department address located in subsection 62-761.210(1), F.A.C.

   4. (d) Compatibility. The primary and secondary walls of storage tank systems shall be made of, or internally lined with materials that are compatible with, the regulated substance stored in the storage tank systems and with substances or conditions present in the environment. All storage tank systems containing blends of ethanol, biodiesel, or other biofuels and additives shall be compatible with the regulated substances stored in the storage tank systems. Storage tank systems and system components containing ethanol blends greater than 10 percent or biodiesel blends greater than 20 percent must demonstrate compatibility through registration of the storage tank system and system components in accordance with subsection 62-761.850(2), F.A.C.
   5. (e) All components of a storage tank system shall be installed in accordance with the manufacturer’s instructions.

   6. (f) All storage tank systems shall be installed in accordance with the following reference guidelines, hereby adopted and incorporated by reference and, as copyright protected documents, are available for inspection at the Department of Environment Protection or the Department of State address provided in subsection 62-761.210(1), F.A.C.:

      1. Installation of Underground Petroleum Storage Systems, API Recommended Practice 1615, (R.2020), 6th Edition, April 2011. To obtain this reference from the publisher, see paragraph 62-761.210(2)(b), F.A.C.;

      2. Flammable and Combustible Liquids Code, Storage of Liquids in Tanks – Underground Tanks, Chapter 23 of NFPA 30, 2021 Edition, incorporated by reference in paragraph 62-761.300(2)(v), F.A.C. To obtain this reference from the publisher, see paragraph 62-761.210(2)(g), F.A.C.;

      3. Code for Motor Fuel Dispensing Facilities and Repair Garages, NFPA 30A, 2021 Edition. To obtain this reference from the publisher, see paragraph 62-761.210(2)(g), F.A.C.;

      4. Process Piping, ASME B31.3, 2020 Edition. To obtain this reference from the publisher, see paragraph 62-761.210(2)(c), F.A.C.; and

      5. Recommended Practices for Installation of Underground Liquid Storage Systems, PEI/RP100-20, 2020 Edition. To obtain this reference from the publisher, see paragraph 62-761.210(2)(j), F.A.C.

   7. (g) Storage tanks with field-fabricated internal secondary containment shall be installed in accordance with the following manufacturer’s specifications, hereby adopted and incorporated by reference and, as copyright protected documents, are available for inspection at the Department of Environmental Protection or the Department of State address provided in subsection 62-761.210(1), F.A.C.:

      1. Outline of Investigation for Underground Fuel Tank Internal Retrofit Systems, UL 1856, June 2020, 2nd Edition. To obtain this reference from the publisher, see paragraph 62-761.210(2)(m), F.A.C.; and,

      2. NLPA Standard 631, Chapters A and B, 1991. To obtain this reference from the publisher, see paragraph 62-761.210(2)(i), F.A.C.

   8. (h) If the installation of the storage tank system component disturbs the backfill, or where the integral piping is connected or disconnected during installation, a Certified Contractor shall perform the installation of storage tank systems containing pollutants, including: tanks, integral piping (excluding drop tubes), overfill protection and spill containment equipment, internal release detection equipment, cathodic protection systems, secondary containment systems, and dispensers.
   9. (i) Whenever storage tanks or integral piping are installed or relocated after January 11, 2017, a survey drawing of installed tanks and underground integral piping signed and sealed by a professional land surveyor or professional engineer licensed in the state of Florida, shall be completed and maintained as a record in accordance with Rule 62-761.710, F.A.C. The survey drawing of the work completed, along with any changes made to the original specifications during the construction process, shall include all construction and equipment design specifications including exact dimensions, geometry and locations of the storage tanks or integral piping installed. Surveys are not required for tanks that are retrofitted with internal secondary containment.

2. (2) Storage tank installation.

   1. (a) All storage tanks at a facility shall have secondary containment and shall be constructed or installed to provide for interstitial monitoring of the entire storage tank.
   2. (b) Fiberglass reinforced plastic double-walled tanks shall be constructed in accordance with the following document: Standard for Fibre Reinforced Underground Tanks for Flammable and Combustible Liquids (formerly Glass-Fiber-Reinforced Plastic Underground Storage Tanks for Petroleum Products, Alcohols, and Alcohol-Gasoline Mixtures), UL/ULC 1316, January 1994, Revised November 2018, 3rd Edition, available from the publisher at UL, 333 Pfingsten Road, Northbrook, Illinois 60062-2096, (847)272-8800, or from the publisher’s website at www.ul.com/, or the Department address listed in subsection 62-761.210(1), F.A.C.; or these tanks shall be certified by a Nationally Recognized Testing Laboratory that these requirements are met, and registered in accordance with subsection 62-761.850(2), F.A.C.

   3. (c) Cathodically protected double-walled steel tanks shall be registered in accordance with subsection 62-761.850(2), F.A.C., and shall be:

      1. Constructed in accordance with the following documents: Steel Underground Tanks for Flammable and Combustible Liquids, UL 58, July 1998, Revised January 2018, 10th Edition, and External Corrosion Protection Systems for Steel Underground Storage Tanks, UL 1746, January 2007, Revised December 2014, 3rd Edition, hereby adopted and incorporated by reference, and are available from the publisher at UL, 333 Pfingsten Road, Northbrook, Illinois 60062-2096, (847)272-8800, or from the publisher’s website at www.ul.com/, or the Department address listed in subsection 62-761.210(1), F.A.C.;

      2. Constructed in accordance with the following document: sti-P3® Specification and Manual for External Corrosion Protection of Underground Steel Storage Tanks, sti-P3®, Revised May 2018, Steel Tank Institute (STI), hereby adopted and incorporated by reference, and is available from the publisher at STI, 944 Donata Court, Lake Zurich, Illinois 60047, (847)438-8265, or from the publisher’s website at https://www.steeltank.com/, or the Department address listed in subsection 62-761.210(1), F.A.C.;

      3. Constructed in accordance with reference document STI R972, Revised December 2010, incorporated by reference in subparagraph 62-761.500(1)(c)5., F.A.C., or

      4. Certified by a Nationally Recognized Testing Laboratory for any field-installed cathodic protection system, that these requirements are met, constructed, and designed by a Corrosion Professional in accordance with the following document: External Corrosion Control of Underground Storage Tank Systems by Cathodic Protection, NACE Standard SP0285-2021, 2021 Edition, hereby adopted and incorporated by reference, and is available from the publisher at AMPP (The Association for Materials Protection and Performance, formerly NACE International), AMPP, 15835 Park Ten Place, Houston, Texas 77084, (800)797-6223, or the publisher’s website at https://www.ampp.org/home. Copyright protected documents are available for inspection at the Department of Environmental Protection or the Department of State address provided in subsection 62-761.210(1), F.A.C.

   4. (d) Double-walled steel tanks coated with fiberglass reinforced plastic shall be constructed in accordance with UL 58, July 1998, Revised January 2018, UL 1746, January 2007, Revised December 2014, and Specification for External Corrosion Protection of FRP Composite Steel USTs – ACT-100®, STI F894, Revised May 2018, or these tanks shall be certified by a Nationally Recognized Testing Laboratory that these requirements are met, and registered in accordance with subsection 62-761.850(2), F.A.C. STI F894, Revised May 2018, is hereby adopted and incorporated by reference, and available from the publisher at STI, 944 Donata Court, Lake Zurich, Illinois 60047, (847)438-8265, or from the publisher’s website at https://www.steeltank.com/, or the Department address listed in subsection 62-761.210(1), F.A.C.
   5. (e) Jacketed steel tanks shall be constructed in accordance with UL 1746, January 2007, Revised December 2014, or certified by a Nationally Recognized Testing Laboratory that these requirements are met, and registered in accordance with subsection 62-761.850(2), F.A.C.
   6. (f) Double-walled storage tanks that meet the above performance requirements, or other double-walled storage tanks that are constructed of equivalent material, design, or corrosion protection shall be registered with the Department in accordance with subsection 62-761.850(2), F.A.C.
   7. (g) Tanks shall be installed to allow for release detection in accordance with Rule 62-761.600, F.A.C.

   8. (h) Double-walled storage tanks that have been removed and that are to be reinstalled at a different location shall:

      1. Be recertified that all original warranties are confirmed by the original manufacturer or the manufacturer’s successor, and be reinstalled in accordance with the requirements in this subsection, or

      2. Be recertified by a professional engineer licensed in the state of Florida that the storage tank meets all applicable requirements of this subsection; and,

      3. Show proof of recertification which shall be provided to the Department and county prior to the start of installation. The storage tank shall be re-registered in accordance with subsection 62-761.400(1), F.A.C.

3. (3) Integral piping.

   1. (a) All integral piping, including remote fill piping that is in contact with the soil, shall have secondary containment, with the exception of vertical fill piping.
   2. (b) All integral piping that transports regulated substances over surface waters of the state shall have secondary containment and shall be UV rated if exposed to sunlight if made of non-metallic materials, and shall be registered in accordance with subsection 62-761.850(2), F.A.C., if made of non-metallic materials.
   3. (c) All integral piping that is not in contact with the soil shall meet the construction requirements in subparagraphs 62-761.500(3)(d)2. through 5., F.A.C., shall be UV rated if exposed to sunlight if made of non-metallic materials, and shall be registered in accordance with subsection 62-761.850(2), F.A.C., if made of non-metallic materials.

   4. (d) Construction requirements.

      1. Fiberglass reinforced plastic integral piping or other non-metallic double-walled integral piping installed in contact with the soil at a facility shall meet the requirements of Nonmetallic Underground Piping for Flammable Liquids, UL 971, May 2021, 2nd Edition, or shall be certified by a Nationally Recognized Testing Laboratory that these requirements are met, and registered in accordance with subsection 62-761.850(2), F.A.C. UL 971, May 2021, 2nd Edition, is hereby adopted and incorporated by reference, and is available from the publisher at UL, 333 Pfingsten Road, Northbrook, Illinois 60062-2096, (847)272-8800, or from the publisher’s website at www.ul.com/. Copyright protected documents are available for inspection at the Department of Environmental Protection or the Department of State address provided in subsection 62-761.210(1), F.A.C.

      2. Coated steel double-walled integral piping shall be constructed in accordance with ASME B31.3, 2020 Edition, incorporated by reference in subparagraph 62-761.500(1)(f)4., F.A.C. In addition, steel integral piping in contact with the soil shall be cathodically protected in accordance with the following documents: Cathodic Protection of Underground Petroleum Storage Tanks and Piping Systems, API Recommended Practice 1632, (R2010) 3rd Edition, May 1996, hereby adopted and incorporated by reference and, as a copyright protected document, is available for inspection at the Department of Environmental Protection or the Department of State address provided in subsection 62-761.210(1), F.A.C., or the publisher at API, 1220 L Street, N.W., Washington, D.C. 20005, (202)682-8000, or the publisher’s website at http://www.api.org/; Control of External Corrosion on Underground or Submerged Metallic Piping Systems, NACE Standard SP0169-2013 (formerly RP0169), 2013 Edition, hereby adopted and incorporated by reference and, as a copyright protected document, is available for inspection at the Department of Environmental Protection or the Department of State address provided in subsection 62-761.210(1), F.A.C., or the publisher at AMPP (The Association for Materials Protection and Performance, formerly NACE International), AMPP, 15835 Park Ten Place, Houston, Texas, (800)797-6223, or the publisher’s website at https://www.ampp.org/home; and Recommended Practice for Corrosion Protection of Underground Piping Networks Associated with Liquid Storage and Dispensing Systems, STI R892, Revised January 2006, hereby adopted and incorporated by reference and, as a copyright protected document, is available for inspection at the Department of Environmental Protection or the Department of State address provided in subsection 62-761.210(1), F.A.C., or the publisher at Steel Tank Institute (STI), 944 Donata Court, Lake Zurich, Illinois 60047, (847)438-8265, or from the publisher’s website at https://www.steeltank.com/.

      3. Metallic double-walled integral piping constructed of nonferrous materials, such as copper, does not require cathodic protection and shall be constructed in accordance with the requirements in Chapter 27 of NFPA 30, 2021 Edition, Flammable and Combustible Liquids Code, Piping Systems, incorporated by reference in paragraph 62-761.300(2)(v), F.A.C.

      4. Metallic single-walled vertical fill piping does not require cathodic protection and shall be constructed in accordance with the requirements in Chapter 27 of NFPA 30, 2021 Edition, Flammable and Combustible Liquids Code, Piping Systems, incorporated by reference in paragraph 62-761.300(2)(v), F.A.C.

      5. Integral double-walled piping constructed of other materials, design, or corrosion protection shall be registered with the Department in accordance with subsection 62-761.850(2), F.A.C.

   5. (e) Integral piping shall be installed with a slope to a low point monitoring system to allow for release detection in accordance with Rule 62-761.600, F.A.C.
   6. (f) Pressurized integral piping systems connected to dispensers shall be installed with shear valves or emergency shutoff valves in accordance with Section 6.3 of NFPA 30A, 2021 Edition, Code for Motor Fuel Dispensing Facilities and Repair Garages, Requirements for Dispensing Devices, incorporated by reference in subparagraph 62-761.500(1)(f)3., F.A.C. These valves shall be designed to close automatically if a dispenser is displaced from its normal position. The valves shall be rigidly anchored independently of the dispenser. The valves shall be tested in accordance with PEI/RP1200-19, 2019 Edition, incorporated by reference in subparagraph 62-761.500(1)(b)4., F.A.C., at the time of installation by a certified contractor to confirm that the automatic closing function of the valve operates properly and that the valve is properly anchored.
   7. (g) All storage tank systems located at an elevation that produces a gravity head on integral piping positioned below the product level in the storage tank must be installed and maintained with an isolation block valve in accordance with Chapter 22.13 of NFPA 30, 2021 Edition, Flammable and Combustible Liquids Code, Tank Openings Other Than Vents, incorporated by reference in paragraph 62-761.300(2)(v), F.A.C., and located as close as practical to the storage tank, regardless of the date of installation of the storage tank system. In addition, anti-siphon valves shall be installed and maintained in accordance with Section 11.2 of NFPA 30A, 2021 Edition, Code for Motor Fuel Dispensing Facilities and Repair Garages, Marine Fueling – Storage, regardless of the date of installation of the storage tank system. NFPA 30A, 2021 Edition, is incorporated by reference in subparagraph 62-761.500(1)(f)3., F.A.C.
   8. (h) Pressurized integral piping systems connected to dispensers shall be installed with a method of leak detection that can detect a leak within one hour, and can include a mechanical line-leak detector or an electronic line leak detector, or another device registered in accordance with subsection 62-761.850(2), F.A.C.
   9. (i) Storage tank systems using corrosion protection systems with vapor corrosion inhibitors that are registered in accordance with subsection 62-761.850(2), F.A.C., shall be designed and installed under the direction of a Corrosion Professional.
   10. (j) Bulk product piping, on-site integral piping with an internal diameter greater than three inches utilized for transporting regulated substances, associated with underground storage tank systems shall meet the bulk product piping requirements in Chapter 62-762, F.A.C., Aboveground Storage Tank Systems, pursuant to subsection 62-762.502(4), F.A.C., hereby adopted and incorporated by reference.

4. (4) Spill containment systems.

   1. (a) Storage tank systems shall be installed with a spill containment system at each tank fill connection meeting the performance requirements of paragraph 62-761.500(1)(b), F.A.C., and registered in accordance with subsection 62-761.850(2), F.A.C.

   2. (b) Fillbox covers.

      1. Effective June 25, 2024, regardless of the date of installation of the storage tank system, fillbox covers shall be marked or the fill connection tagged, and facility signage shall be prominently displayed in accordance with the following document, hereby adopted and incorporated by reference: Using the API Color-Symbol System to Identify Equipment, Vehicles, and Transfer Points for Petroleum Fuels and Related Products at Dispensing and Storage Facilities and Distribution Terminals, API Recommended Practice 1637, 4th Edition, April 2020. API 1637 is copyright protected and available for inspection at the Department of Environmental Protection or the Department of State address provided in subsection 62-761.210(1), F.A.C., or the American Petroleum Institute information provided in paragraph 62-761.210(2)(b), F.A.C.

      2. For aviation facilities, regardless of the date of installation of the storage tank system, fillbox covers shall be marked or the fill connection tagged, and facility signage shall be prominently displayed in accordance with the following document, hereby adopted and incorporated by reference Identification Markings for Dedicated Aviation Fuel Manufacturing and Distribution Facilities, Airport Storage and Mobile Fuelling Equipment, EI 1542, 9th Edition, July 2012. EI 1542 is copyright protected and available for inspection at the of Environmental Protection or the Department of State address provided in subsection 62-761.210(1), F.A.C., or the Energy Institute information provided in paragraph 62-761.210(2)(d), F.A.C.

      3. An equivalent method may also be approved by the Department using an alternative procedure in accordance with subsection 62-761.850(1), F.A.C.

   3. (c) Single-walled spill containment systems shall be installed to allow for release detection in accordance with Rule 62-761.600, F.A.C.
   4. (d) Double-walled spill containment systems shall be installed to allow for interstitial monitoring in accordance with Rule 62-761.600, F.A.C.

5. (5) Dispensers and dispenser sumps.

   1. (a) The dispensers used for transferring fuels from storage tanks to vehicles or portable containers shall be installed and maintained in accordance with the provisions of NFPA 30, 2021 Edition, incorporated by reference in paragraph 62-761.300(2)(v), F.A.C., and Chapter 6, Fuel Dispensing Systems; Chapter 9, Operational Requirements; and Chapter 11, Code for Motor Fuel Dispensing Facilities and Repair Garages, Marine Fueling of NFPA 30A, 2021 Edition.
   2. (b) Dispensers shall be installed with a dispenser sump meeting the performance requirements of paragraph 62-761.500(1)(b), F.A.C., and registered in accordance with subsection 62-761.850(2), F.A.C. The dispenser sump shall extend beneath the union of the integral piping and the dispenser, including the shear valve, if applicable.
   3. (c) Dispenser sumps shall be installed to allow for release detection in accordance with Rule 62-761.600, F.A.C. The dispenser sump shall be capable of containing a release for the entire area beneath the dispenser.

6. (6) Piping sumps.

   1. (a) Piping sumps shall meet the performance requirements of paragraph 62-761.500(1)(b), F.A.C., and be registered in accordance with subsection 62-761.850(2), F.A.C. The sumps shall be designed, constructed, and installed to minimize water entering the sump.
   2. (b) Piping sumps shall be installed to allow for release detection in accordance with Rule 62-761.600, F.A.C.

7. (7) Overfill protection.

   1. (a) Owners or operators shall ensure that the volume available in the storage tank is greater than the volume of regulated substances to be transferred to the storage tank before the transfer is made and shall ensure that any transfer is repeatedly monitored to prevent overfilling and spilling, and no storage tank shall be filled beyond 95 percent capacity.

   2. (b) Storage tank systems shall be equipped with an overfill device that meets one of the following:

      1. Automatically shuts off flow to the storage tank when the storage tank is no more than 95 percent full;

      2. Restricts flow to the storage tank when the storage tank is no more than 90 percent full and does not fill the storage tank beyond 95 percent capacity. Flow restrictors, such as ball float valves, used in vent lines may not be used when overfill protection is installed or replaced after January 11, 2017. Flow restrictors installed before January 11, 2017, may only be used if the storage tank system meets the requirements of Section 7 of PEI/RP100-20, 2020 Edition, Recommended Practices for Installation of Underground Liquid Storage Systems, UST Overfill Equipment Verification, Inspection and Testing incorporated by reference in subparagraph 62-761.500(1)(b)5., F.A.C.; or,

      3. Alerts the transfer operator when the tank is no more than 90 percent full by triggering an alarm that is visible, audible, or both, and the transfer operator is to ensure the tank is not filled beyond 95 percent capacity.

   3. (c) Effective October 13, 2019, owners and operators shall:

      1. Designate a primary overfill protection device used to meet the requirements in paragraph 62-761.500(7)(b), F.A.C., and any additional overfill devices shall not interfere with the designated primary device; and,

      2. Ensure the designated primary overfill protection device is registered pursuant to registration of storage tank system equipment and release detection systems and methods, subsection 62-761.850(2), F.A.C.

   4. (d) All overfill protection devices shall be tested for operability at installation and test results shall be maintained and available for inspection by the Department or county in accordance with Rule 62-761.710, F.A.C.
   5. (e) An annual operability test shall be performed on the designated primary overfill protection device used to meet the Department’s overfill protection requirement at intervals not exceeding 12 months to ensure proper operation and test results shall be maintained and available for inspection by the Department or county in accordance with Rule 62-761.710, F.A.C. An annual operability test will be deemed timely if performed within the same calendar month in which the test is due.
   6. (f) Storage tank systems with capacities of 2,000 gallons or less that do not receive delivery by a mated (joined) tight fill adaptor connection of the delivery hose to the tank riser may use calibrated stick measurements for overfill protection, and are not required to be equipped with one of the devices specified in paragraph 62-761.500(7)(b), F.A.C., provided that an inches to gallons tank chart is posted at the tank fill area or readily available to the delivery driver. Such tanks shall not be filled beyond 95 percent capacity.
   7. (g) Used oil tanks that receive less than 25 gallons at one time are not required to have overfill protection.

Rulemaking Authority 376.303 FS. Law Implemented 376.303 FS. History–New 12-10-90, Amended 5-4-92, Formerly 17-761.500, Amended 9-30-96, 7-13-98, 6-21-04, 1-11-17, 10-13-19, 6-25-23.