Vehicle and Engine Emissions Certification Support

Trinity Consultants provides support for vehicle and engine manufacturers seeking emissions certifications in North America. We provide expert assistance in obtaining certification with U.S. Environmental Protection Agency (EPA), California Air Resources Board (CARB), Environment and Climate Change Canada (ECCC), and International Maritime Organization (IMO), including application preparation, test plan design, and regulatory liaison.

In addition to direct assistance with certification, Trinity also specializes in the development of long-term regulatory compliance strategies for engine and vehicle manufacturers.

How Trinity Supports EPA, CARB, ECCC, and IMO Certification

Trinity combines regulatory fluency with deep technical expertise. We work closely with clients to:

Identify and evaluate certification requirements and pathways for all types of vehicles and engines
Identify testing facilities and develop emission test plans required for certification
Prepare and submit EPA, CARB, and ECCC certification applications with complete technical documentation
Work with agency staff to facilitate the certification process
Perform audits of emission testing laboratories to ensure compliance with EPA, CARB, and ISO/IMO standards
Support ongoing certification compliance requirements including warranty and defects reporting

Our Vehicle & Engine Certification Services

Plan & Certify with Confidence

Manufacturer registration with EPA, CARB, and ECCC
Certification pathway analysis, including carryover/carry-across strategies
Testing strategy development for multi-agency and multi-application use
Complete application preparation including AECD documentation, warranty statements, and GHG modeling
EPA Greenhouse Gas (GHG) certification support for heavy-duty vehicles
Application submission, tracking, and agency follow-up
Advanced Clean Trucks (ACT) and ZEV certification support

Audit-Ready Testing & Oversight

Emissions lab audits and coast-down procedure reviews
Equipment compliance inspections: dynamometers, SHEDs, analyzers, etc.
Emissions testing method evaluation and oversight
Best practice recommendations and compliance reports

Stay Compliant After Certification

Annual production reporting and production line testing (PLT) support
Support clients through oversight of confirmatory testing and agency audit management
Defect tracking, compliance reviews, and recall coordination
Enforcement response strategy, litigation support, and regulatory liaison

How Else We Can Help

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Regulatory Background

Who We Help

Manufacturers and operators across the engine and vehicle supply chain face mounting compliance demands, including ongoing lifecycle reporting, defect and warranty submissions, stricter testing transparency, cross-agency approval requirements, and frequent audit reviews.

With decades of experience and hundreds of successful certifications across North America and internationally, Trinity helps clients avoid delays, reduce costs, and maintain compliance with confidence.

Trinity’s Engine and Vehicle Certification Division provide certification expertise and regulatory insight to:

Original equipment manufacturers (OEMs) & engine manufacturers seeking timely certifications and compliance support in North America
Importers requiring EPA, CARB, ECCC, or IMO approvals
Fleet managers & vehicle modifiers certifying custom or zero-emission vehicles
Test labs & coastdown facilities preparing for audits, compliance reviews, and inspections
Marine engine manufacturers & vessel operators pursuing EPA Category 3 or IMO engine certifications

Certification impacts everything from launch timelines to potential fines and enforcement actions. Trinity helps you anticipate issues, secure approvals, and maintain compliance with confidence.

How We Help: Client Examples

Global Engine Manufacturer Secures Land and Marine Approvals

Needed both land-based nonroad and marine approvals, risking duplicate testing and long timelines. Trinity designed a harmonized testing plan that met EPA requirements for both applications, accelerating approvals and cutting costs by 30%.

U.S.-Based Marine Vessel Operator Avoids Delays During Reflagging

Faced tight deadlines for EPA Category 3 certification as vessels were reflagged to U.S. ownership. Trinity coordinated with test labs and EPA staff to secure timely approvals, keeping the fleet compliant and avoiding operational delays.

Nonroad Engine Manufacturer Achieves EPA and CARB Certification for U.S. Market Entry

A first-time market entrant struggled with complex EPA and CARB requirements. Trinity developed complete application packages, testing strategies, and agency communications, resulting in smooth certification and faster market entry.

Global Vehicle OEM Passes EPA Audit Without Penalties

Needed support with defect reporting, warranty submissions, and confirmatory testing. Trinity’s guidance helped the client pass an EPA audit with no penalties, maintaining compliance confidence across multiple vehicle test groups.

Environmental Consulting

Vehicle and Engine Emissions Certification Support

In addition to direct assistance with certification, Trinity also specializes in the development of long-term regulatory compliance strategies for engine and vehicle manufacturers.

How Trinity Supports EPA, CARB, ECCC, and IMO Certification