UST Program – Available Local Guidance (LG) Letters
LGs that are not on this list are obsolete or outdated. See obsolete/outdated LGs.
[1 - 110 ] [111 - 119 ] [120 - 129 ] [130 - 139 ] [140 - 149 ] [150 - 159 ] [160 - 171 ]
| Letters 160-171 | Description | 
|---|---|
| Permanent Closure of Underground Storage Tanks that do not meet Health and Safety Code, Chapter 6.7, Section 25291, Subdivisions (a)(1)-(6) | |
| Collection of Tank Owner BOE Account Number | |
| Clarification of Requirements for Vapor Condensate Traps | |
| LG-167-2 | Qualifications & Scope of Work for UST Installers and Service Technicians | 
| LG 166 | UNDER REVISION Guidelines for Testing Spill Buckets »» Enclosure - Spill Bucket Test Report Form | 
| LG-165-2 | UNDER REVISION Storage Tanks in Containment Structures Located Beneath the Surface of the Ground Health and Safety Code Section 25283.5 Exemption | 
| LG 164-4 | Reporting of Technical Compliance Rate (For use on or after July 1, 2020) | 
| LG 163-1 | UNDER REVISION General
                Recommendations for Testing Leak Detection
                Sensors. »» Enclosure 1 - General Recommendations for Testing Leak Detection Sensors. »» Enclosure 2 - Vacuum/Pressure Sensor Certification Form | 
| LG 162-5 | Installation and Monitoring Requirements for Underground Storage Tanks Installed on or after July 1, 2003 (12/12/19) | 
| Enhanced Leak Detection (3/25/08) | |
| LG 160 | Underground Storage Tank (UST) Secondary Containment Testing | 
| Letters 150-159 | Description | 
|---|---|
| LG 159 | UNDER REVISION Annual Underground Storage  Tank Compliance Inspection »» Enclosure - Annual Underground Storage Tank Compliance Inspection Handbook | 
| LG 158 | New Landowner Notification and Participation Requirements | 
| LG 152 | UNDER REVISION Aboveground Piping Associated With an Underground Storage Tank System | 
| LG 151-3 | Bulk Field-constructed Underground Storage Tanks Monitoring and Compliance | 
| Underground 
                Storage Tank Overfill Prevention Systems (previous title: Ball Float Vent Valve vs. Fill Tube Positive Shutoff Valve | 
| Letters 140-149 | Description | 
|---|---|
| LG 145-2 | Clarification of Corrosion Specialist and Cathodic Protection Tester | 
| LG 143 | Regulatory Status of Hydrant Fueling Systems at California Airports | 
| LG 141 | Permanent Hydraulic Fuel Tank Exemption | 
| Letters 130-139 | Description | 
|---|---|
| LG 139-2 | Reporting 
                Statistical Inventory Reconciliation (SIR) Results 
                (Supersedes LG 139-1) »» Attachment 1 | Attachment 2 | 
| LG 138 | Rescission - Regulation of Dispenser Piping and Related Equipment | 
| LG 136-1 | UNDER REVISION Interior Lining and Cathodic Protection of USTs | 
| Letters 120-129 | Description | 
|---|---|
| LG 125-1 | Product Level Requirement for Tank Testing Methods | 
| LG 122 | Applicability of the Closure Regulations To Tank Decommissioned Before January 1, 1984 | 
| Letters 110-119 | Description | 
|---|---|
| LG 119-1 | Certification of Underground Storage Tank Installations | 
| LG 118 | Underground Storage Tank Tank Test Result Reporting | 
| LG 116 | Regulation of Compartmental Underground Storage Tanks (UST) | 
| LG 113 | List of Leak Detection Equipment and Methods for Underground Storage Tanks | 
| Letters 1-110 | Description | 
|---|---|
| LG 109-1 | Regulatory Status of Farm Tanks and Heating Oil Tanks | 
| LG 107 | Liquefied Petroleum Gas (LPG) Underground Storage Tanks | 
| LG 105 | Licensed Tank Testers and Tank Testing Companies | 
| LG 56 | Third Party Responsibility for Unauthorized Release Reporting | 
| LG 50 | Proposition 65 Disclosure | 
| LG 48-5 | UNDER REVISION Contractors' Licensing and Certification Requirements for Installation, Removal, and Upgrade of Underground Storage Tanks | 



