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EPA/CARB Compliance / Homologation Services

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Boshart Engineering regularly provides testing services for emission certification to vehicle manufacturers for compliance with all North American-based regulators. Support can be as simple as providing information on OBD-II phase-in timing for a particular diagnostic to complete Part 1 and Part 2 data generation, compilation and submission including all required durability and emission testing for the EPA Certificate of Conformity and CARB Executive Order issuance.


In the automobile industry, homologation means the development and certification of vehicles and vehicle parts according to the legal requirements of the market, as well as all corresponding activities necessary for achieving vehicle compliance. One of Boshart Engineering’s core competencies is to provide emission certification and testing services to vehicle manufacturers for homologation and compliance with all North American-based regulatory agencies including:

  • The US Environmental Protection Agency (EPA)
  • The California Air Resources Board (CARB)
  • The States within the Northeast Trading Region (NTR)
  • Environment Canada

Boshart Engineering uses a five-phase approach to emission certification/homologation activities that help our customers identify necessary requirements, plan for, and implement actual testing and certification activities and action items: Phase 1 – Detailed Emission Certification Plan with Details of Phases 2 – 5

  • Phase 2 – Consultation
  • Phase 3 – Preliminary Durability Test Fleet/Development Support
  • Phase 4 – Actual Certification Activities
  • Phase 5 – Post Production Regulatory Requirements
Phases include:
  • Planning.
  • Consultation and liaison services.
  • Complete useful-life 100K, 120K, 150K vehicle durability testing for determination of emission deterioration factors.
  • EMS and OBD validation testing.
  • Evaporative and exhaust emissions testing.
  • OBD demonstration testing for CARB OBD compliance.
  • Determination of corporate fleet NMOG and CAFÉ averages.
  • Development of Alternative Durability Aging Procedures (ADP) for accelerated emission system durability for whole vehicle testing or bench aging. This includes evaporative systems as well as exhaust emission systems.
  • After sales IUVP and IPT/RBM/IUMP support.
Vehicle types supported:
  • Passenger Vehicles
  • Light-Duty Trucks
  • Medium/Heavy Duty Diesel Trucks
  • Motorcycles and Scooters
Boshart Engineering can support individual aspects of certification or the entire process.
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