Sign Up To Become a GVIP Station

What is required of local auto shops to participate in the program?

  • Apply to the state for an emissions inspection license.
  • Conduct emissions inspections (option to repair failing vehicles).
  • Pay license fee ( $100 per year — prorated the first year so that safety and emissions licenses are synchronized).
  • Have Internet for real-time vehicle registration verification.
  • Purchase inspection equipment from the state's contractor. (Equipment not required if only doing safety inspections.)
  • Charge for testing no more than the following:
    • Emissions testing fee = $24.
    • Safety inspection fee = $12.

How should local auto shops apply to Worldwide Environmental Products Inc.?

Visit Worldwide Environmental - Missouri GIS 9000 Gateway Inspection System to download the enrollment package for new inspection stations. This will include all of the information you need to order inspection equipment. The standard solution is required in order to participate in the GVIP, and there are optional accessories available for purchase. For more information visit the Frequently Asked Questions – Auto Shops/Inspectors.

Fill out all required sections of the inspection station enrollment package and submit the package to Worldwide Environmental Products in one of three ways:

  • Email to (recommended)
  • Mail to the following address:
    Worldwide Environmental Products Inc.
    1100 Beacon St.
    Brea, CA 92821
    ATTN: Contracts Department

Once WEP receives your enrollment package, a WEP representative will contact you to answer any questions as well as to provide an invoice for your standard solution and any optional accessories. Once WEP receives your payment, WEP will schedule delivery and installation of the inspection equipment.

What is required of inspectors to participate in the program?

  • Apply to the state for a license. (Valid for three years and provided at no cost)
  • Take training from contractor.
  • Pass a written and practical exam offered by Missouri State Highway Patrol.

Click for information on becoming a Missouri recognized repair technician.

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Training information for auto shops participating in GVIP

Worldwide Environmental Products, Inc. schedules inspector/mechanic training for GVIP. To learn more about training classes and to preregister, contact Worldwide Environmental Products Inc., at 877-832-7664.

  • WEP's training guidebook for emissions inspectors
  • Inspector/mechanic training will take place 5-9 p.m. on the second Tuesday of each month at Ranken Technical College, 4431 Finney Ave., St. Louis. The class will be in Room G108-109 of Gray Building. Located on the campus map. Look for signs on campus on the day of training. Register for class by calling 800-832-7664 or 877-832-7664 and pressing number 3. Be prepared to provide your name, contact information, social security number, driver's license number and the I/M number and station number, if applicable. Bring a photo ID, such as your driver's license, to receive training and take the test. You must be able to read to attend this training.

Tax exemptions

What vehicle parts are exempt from state sales tax?

State statute 144.030.2(14), RSMO exempts the state sales tax on any vehicle part that serves the equivalent function to a part that is listed in the rule. For example, some PCV valves are not true valves (open vs. shut), but orifice restrictors (wide vs. narrow). Such PCV orifice restrictors are sales tax exempt.

The following replacement vehicle parts are exempt from state sales tax:
  • Air injection parts, air pumps check valves, smog pumps.
  • Catalytic converters (universal converters, direct fit converters, converter kits).
  • Exhaust gas recirculation, or EGR, valves.
  • Evaporative canisters and canister purge valves.
  • Positive crankcase ventilation, or PCV, valves.

When purchasing the above vehicle parts, the customer is not required to fill out a form or application. The parts are automatically exempt from state sales tax. However, the retailer or installer must indicate on the invoice what parts were sales tax exempt and what parts were not exempt. The retailer must also retain copies of these invoices for five years for audit purposes.

Department of Revenue Sales and Use Tax Exemption Certificate Form 149

All questions about sales tax procedures or enforcement should be addressed to the Missouri Department of Revenue’s Division of Taxation and Collection at 573-751-2836.

On-Board Diagnostics (OBD) Information for Technicians

Repair Industry Information and Links

  • Alliance of Automotive Service Providers of Missouri — Membership organization committed to improving the automotive service industry through image building and ongoing training.
  • Archived Gateway Air Repair Newsletters — Note that some topics covered in earlier issues were specific to the previous emissions testing program; they may no longer apply.
  • — Online automotive news magazine published by the Detroit Free Press.
  • Automotive Service Association — Membership organization that provides automotive business and technical support to association members.
  • Autoshop 101 — Automotive training and resource site for automotive electronics.
  • — Look up recalls and post questions.
  • — A comprehensive car information website. Info about new and used car prices, insurance, repairs and recalls.
  • Delphi Inc — Automotive Support Programs for Inspection, Repair and Emissions for the automotive industry, providing: Diagnostic and Repair Assistance, Technical Assessment, Education and Support.
  • Engine Rebuilders Association — Membership organization that provides technical information, resources and training materials.
  • Greening Your Shop — Look up the top 10 ways to green your auto shop.
  • International Automotive Technicians' Network — Membership organization that provides education to professional automotive technicians. Question and answer forum.
  • Kelley Blue Book — Look up new and used vehicle values.
  • National Automotive Service Task Force (NASTF) — A not-for-profit, no-dues task force established to facilitate the identification and correction of gaps in the availability and accessibility of automotive service information, service training, diagnostic tools and equipment,and communications for the benefit of automotive service professionals. NASTF is a voluntary, cooperative effort among the automotive service industry, the equipment and tool industry, and automotive manufacturers.
  • National Highway Traffic Safety Administration — Information on recalls, technical service bulletins and safety information.
  • Information about EPA's Greenhouse Gas Reporting Program.
  • National Institute for Automotive Service Excellence (ASE) — A nonprofit organization with a single mission: To improve the quality of automotive service and repair through the voluntary testing and certification of automotive technicians.

This information is provided as a public service. The source of this material is not under the direct control of the department. No endorsement is intended or implied for the corrections or suitability of any referenced information, product or service.