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Hazardous Materials Program Guidance: UST Overfill Prevention —Page 2 of 7 C. Ban On Flow Restrictors (aka Ball Floats or Ball Float Valves) On Vent Risers On or after October 1, 2018, installation of new or replacement flow restrictors on vent riser piping does not satisfy the overfill prevention requirements of 23 CCR §2635. [23 CCR §2635(d)] All overfill prevention which uses flow restrictors on vent piping which require repair or replacement on or after October 1, 2018 must be retrofitted with overfill prevention equipment in accordance with section 2635. [23 CCR §2665(c)] Note: Ball floats installed prior to October 1, 2018 may continue to be used for overfill prevention, provided they pass their periodic inspections. Ball floats may be installed after October 1, 2018, but do not qualify as overfill prevention equipment, and they should not be identified as overfill prevention equipment on the CERS UST— Tank Information Page.] D. Inspections of Overfill Prevention Equipment USTs installed before October 1, 2018 must have their overfill prevention equipment inspected by October 13, 2018 and every 36 months thereafter; and within 30 days of the date of the completion of a repair. [23 CCR §2637.2(a)(1)] USTs installed on or after October 1, 2018 must have their overfill prevention equipment inspected upon the completion of an installation and every 36 months thereafter; and within 30 days of the date of the completion of a repair. [23 CCR §2637.2(a)(2)] Overfill prevention equipment inspections must be conducted using an inspection procedure that demonstrates that the overfill prevention equipment is set to activate at the correct level specified in §2635(c)(1) and will activate when regulated stored substance reaches that level. The inspections must be performed in accordance with manufacturer's guidelines or standards. If there are no manufacturer's guidelines or standards, the overfill prevention equipment must be inspected using an applicable method specified in an industry code or engineering standard. [23 CCR §2637.2(b)] Overfill prevention equipment inspections must be performed by a UST Service Technician meeting the requirements of 23 CCR §2715(f). [23 CCR 92637.2(c)] The results of the equipment inspection must be recorded on the "Overfill Prevention Equipment Inspection Report Form" located in Appendix IX of 23 CCR. [23 CCR §2637.2(d)] The UST owner/operator must submit a copy of the "Overfill Prevention Equipment Inspection Report Form" to the UPA within 30 days of completion of the equipment inspection. [23 CCR §2637.2(e)] The UST owner/operator must notify the UPA at least 48 hours prior to conducting the inspection. [23 CCR 'Note: Equipment necessary to comply with 23 CCR §2635(c)(1) must be identified on the California Environmental Reporting System (CERS) UST— Tank Information page (Data Elements 452a -c) and must be inspected. Additional equipment is not required to be inspected, and should not be reported in CERS.] E. Industry Standards for Inspections and Testing The use of industry standards is only allowed in cases where the manufacturer does not have their own guidelines or standards. The table on the following page summarizes inspection procedures published in the Petroleum Equipment Institute's (PEI) Recommended Practices for the Testing and Verification of Spill, Overfill, Leak Detection and Secondary Containment Equipment at UST Facilities (PEI/RP1200-17): HMPG-025 2/7 —Rev. 09/20/18