Vapor Recovery

Vapor recovery is designed to capture the saturated gasoline vapors that would otherwise escape into the environment and pollute the air.  Stage II vapor recovery is the collection of vapors when the customer fills their vehicle gasoline tank. Stage I vapor recovery is when the fuel truck delivers gasoline to the gas station.

Removal of Stage II Vapor Recovery

Recent changes will require the removal of stage II vapor recovery equipment at all gas stations in area A between October 1, 2016 and September 30, 2018.  Below is a reference guide for the steps that must be followed for decommissioning as well as presentation materials from July and August Workshops that were held.

Get more information.

Until Stage 2 equipment is removed in compliance with rules, all requirements remain in place.


Summary of Vapor Recovery Requirements

Are You Impacted?

Yes, if you are a gasoline dispensing site located within Area A that pumps at least 10,000 gallons of gasoline per month. (Vapor recovery requirements do not apply to gas stations owned and operated by tribal members on Native American reservations.) If you pump less than 10,000 gallons per month, you must file a monthly Throughput Report by March 30 of each year for the previous calendar year (R3-7-1002(b)) Submit your Gasoline Throughput Report online.

Testing Procedures

Pre-testing can be done up to one hour prior to the scheduled test time. This reduces the possibility of the site failing. There will be no repairs or adjustments after the scheduled test time - no exceptions.

Stations with stage II vapor recovery may test using TP-91-1 pressure decay or may also elect to use an alternative pressure decay test - TP-96-1. Stations must sign an election form provided by your testing contractor if you choose TP-96-1 Note: Maximum time for a 10" wci test is 15 minutes.

The Following Procedures Are Used for Stage II Tests:

TP-91-1 Pressure Decay/Leak Test Procedure, Phase I and Phase II Vapor Recovery Installations. Download
TP-91-1 Pressure Decay/Leak Test Procedure, Phase I and Phase II Vapor Recovery Installations. Download
TP-201.2B Determination of Flow Versus Pressure for Equipment in Phase II Vapory Recovery Systems of Dispensing Facilities. (CARB) Download
TP-201.2C Determination of Spillage of Phase II Vapor Recovery Systems of Dispensing Facilities. (CARB) Download
TP-201.4 Determination of Dynamic Pressure Performance of Vapor Recovery Systems of Dispensing Facilities. (CARB) Download
TP-201.5 Determination (by Volume Meter) of Air to Liquid Volume Ratio of Vapor Recovery Systems of Dispensing Facilities. (CARB) Download
TP-201.6 Determination of Liquid Removal of Phase II Vapor Recovery Systems of Dispensing Facilities. (CARB) Download
TP-96-1 San Diego County Static Pressure Leak Test Procedure. Download
TG-1 Technical Guidance Download

The following procedures are used for sites that have stage I only installed:

After October 6, 2015, sites that have either been constructed with stage I equipment only or after October 1, 2016, sites that decommission stage II systems shall use the following test procedures for testing the stage I equipment.






Determination of 2 Inch WC Static Pressure Performance of Vapor Recovery Systems of Dispensing Facilities

July 26, 2012


Leak Rate and Cracking Pressure of Pressure/Vacuum Vent Valves

October 8, 2003


Determination of Piping Connections to Underground Gasoline Storage Tanks (Tie-Tank Test)

March 17, 1999

Initial Installation or Major Modification of Vapor Recovery Systems

An application must be submitted prior to construction to obtain an Authority to Construct (ATC) along with a $250 fee.  An inspection of the site prior to burial, at start up and annually thereafter is also required. Inspections must be scheduled with the Division. There is no fee for the inspection.

Inspection Logs

Inspections of the system by station personnel are required daily for Stage II sites and once every 7 days for Stage I sites. Logs of all inspections, training and maintenance/repairs must be maintained and available on site for one year for inspection by Division personnel. Sample logs are available online. Licensees can be assessed civil penalties for not properly performing required inspections and maintaining required logs.

Maintenance Log

Maintenance log is to be used when Stage I or Stage II vapor recovery systems or components are repair or replaced.  These logs are to ensure that once a vapor recovery repair or replacement is made that the equipment is operating as designed.  These logs should be maintained on site and will need to be available to the State inspector upon request and at the time the annual test is conducted.

Annual Test

In area A, the annual test is conducted by an independent contractor, paid by the retailer. There is no fee to the Division for the test. Tests must be scheduled in advance with the Division. A Division investigator may witness the test. For stage II, these tests may include: Pressure Decay, Air to Liquid Ratio (A/L), Liquid Blockage, Communication and Back Pressure, and pressure vacuum vent valve. For sites with stage I only, these tests include pressure decay, pressure vacuum vent valve, and tie-tank test. The Division requires the annual test be scheduled within at any time during the month, one year following the date the last test was conducted.  For example, if the site was tested August 3, 2014, the site will require a test be conducted any time between August 1, 2015 and August 31, 2015.

Compliance Inspections

In addition to the annual inspection, the Division may conduct an unannounced compliance inspections. Compliance inspections determine if all vapor components are certified and defect free; all logs are properly maintained and available; and spill containment buckets are cleaned and functioning properly.

Fuel Deliveries

Product transfer documents relating to each of the last 3 deliveries must be available for inspection during normal business hours.



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