Regulatory Compliance Testing

Helping manufacturers comply with constantly evolving Federal and California regulations.


  • Evaporative Emissions Testing

    ATDS routinely conducts IUVP evaporative testing for major OEMs.

    Evaporative emissions testing for PZEV / LEVII vehicles as well as for a variety of vehicles and fuel systems.


                               Our Evap services include.


    • Fuel systems for auxillary power generators for RVs
    • CARB TP902 evaporative emissions testing for 2008 and later off road recreational vehicles and power equipment. Thermal cycling, pressure cycling, slosh stabilization services available.
    • Evaporative canister purge strategy development and in use canister performance studies


                                           Shed Testing


    Our Variable Volume Variable Temperature SHED (VVVT) is capable of Federal and California Enhanced 2 and 3 day test sequences.


    • Evaporative Diurnal SHED testing
    • Running Loss evaporative test cell
    • ORVR (On-Board Vapor Recovery) SHED for refueling and spitback testing
    • Fuel Conditioning Cart for ORVR and motorcycle evaporative testing.


  • Catalytic Converter Aging and Certification

    Our Ontario, Ca facility is equipped with an engine dyno for the use of catalytic converter certification. Aging and certification are done in according to CARB and EPA regulations.  Cats are subjected to exhaust temperatures of 900C with rich/lean cycle for 50+ hours.


  • CARB Executive Order (EO) Testing

    California Vehicle Code, section 27156 (VC27156) and the Federal Clean Air Act(CAA) prohibit vehicle modifications which increase motor vehicle emissions. These "anti-tampering" provisions effectively prohibit the sales of after-market parts which are not functionally identical to the parts they are replacing. However, since most properly engineered parts do not increase emissions, the laws allow for exemptions for the installation of parts proven by their manufacturer and the California Air Resources Board (CARB) not to increase emissions. The process by which these exemptions are granted is via an Executive Order (EO). Each EO is assigned a number which is required on all after-market parts.


    ATDS can locate and acquire the necessary vehicles, make the modifications in our well equipped, four lift mechanic's bay, conduct the required tests and provide properly formatted written reports of the results.


    ATDS has existing driving routes which have been approved by CARB and the EPA for certification use.


  • EPA and CARB Regulatory Compliance Testing

     We have been helping our clients comply with these constantly evolving regulations for nearly 25 years. Some of our support is included in the following categories.


    • Large Spark Ignition Engines for off-road use (LSI)
    • Small Spark Ignition Engines for off road use (SORE), handheld power equipment
    • Off-road recreational vehicles, motorcycles, ATVs
    • Evaporative permeation testing using CARB TP 902
    • Marine engine emissions testing and certification
    • CAP 2000 compliant IUVP automotive emissions testing. (Vehicle procurement services also available)
    • In-Use Monitoring data collection and reporting in compliance with 13CCR 1968.2



  • Emissions Testing Laboratory

    ATDS maintains complete emissions testing capabilities for the latest in light duty passenger cars and trucks as well as on and off road motorcycles, scooters, LSI and SORE engines, and ATVs. From 49cc motorcycles to 14,000 GVW Gasoline, E85 or Diesel Trucks, we can provide complete emissions testing services both for development or regulatory certification purposes


    All ATDS emission tests are audited by our in house quality assurance technician to ensure compliance with CFR and California Title 13 regulations and customer requirements. Further, CARB staff routinely audits our facility for California Title 13 compliance.


    Our laboratory equipment includes the following.


    • 48" electric chassis dynamometer by AVL with Real Time controls capable of testing vehicles, including motorcycles, ATVs and scooters from 300 lbs to 12,500 lbs equivalent inertia
    • Horiba CVS bag emission sampling bench
    • Horiba VETS 7000 test cell automation system with auxiliary channel and CANbus logging capabilities.
    • Horiba Bag Mini Diluter (BMD) for reliably testing SULEV vehicles. EPA/CARB approved test equipment for TIER II/ LEVII SULEV class vehicles.
    • Horiba CVS Bag bench for diesel vehicles
    • 4 station automated evaporative canister preconditioning bench


Automotive Testing & Development Services Inc.

Corporate Office

400 Etiwanda Ave., Ontario CA 91761

+1 909-390-1100

Fax: 1 909-390-9056

© 2018. ATDS Inc. All Rights Reserved.