California Air Resources Board

California Air Resources Board


Executive Order VR-203-G

This page last updated January 11, 2010

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Executive Order VR-203-G
VST Phase II Enhanced Vapor Recovery System Not-Including In-Station Diagnostics (ISD)
Full VR-203-G Download [PDF - 3.2MB]

Legal Document
Equipment List
System Specifications
Performance Standards and Specifications
Required Items in Conducting TP-201.3
Liquid Removal Test Procedure
VST ECS Hydrocarbon Sensor Verification Test Procedure
Vapor Pressure Sensor Verification Test Procedure
Determination of VST ECS Processor Activation Pressure
Nozzle Bag Test Procedure
Veeder-Root Vapor Polisher Operability Test Prodecure
Veeder-Root Vapor Polisher Hydrocarbon Emissions Verification Test Prodecure
Required Items For Conducting TP-201.4

Installation, Operaton and Maintenance Manual (IOM)
Full IOM VR-203-G Download [PDF - 15.5MB]

About VST
Table of Terms and Abbreviations
Contractor Requirements
System Components
Overview EVR Balance Total System
Daily Inspections
Annual Inspections, Replacements, and Compliance Testing
Alarm Troubleshooting Summary
Drive-Offs and Customer Abuse
Nozzle Installation
Nozzle Repair Kit
Breakaway Devices
VST ECS Membrane Processor Installation
VST ECS Membrane Processor OMS Manual
Pressure Management Control Manual for VST ECS Membrane Processor
Veeder-Root Pressure Sensor Installation Guide
Veeder-Root Carbon Canister Vapor Polisher Installation
Veeder-Root Pressure Management Control Manual for Veeder-Root Vapor Polisher

Modification Highlights

VST Hanging Hardware Compatibility Approval Letter #07-09
November 27, 2007 letter to Vapor Systems Technologies approving VST's
EVR hanging hardward as replacement components on Pre-EVR balance vapor recovery systems.

December 11, 2007 letter to Vapor Systems Technologies regarding installation of VST EVR Phase II system without ISD at facilities with throughputs greater than 600,000 gallons/year.


The superseded version of the above document can be found by clicking on the link below:

  • Superseded Executive Order VR-203-E

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    Executive Orders

    A Department of the California Environmental Protection Agency