DPS Technical Inc. — Vehicle Sound Control, EPA Testing & DOT Compliance

Q: Where are DPS Technical's testing facilities located?

DPS Technical operates from two locations: a West Coast facility in Kern County, California, and an East Coast facility in Onslow County, North Carolina. This bi-coastal presence enables efficient service for manufacturers and importers across the United States.

01 — Top Priority

Vehicle Sound Control

Comprehensive sound control solutions for law enforcement, code enforcement, race tracks, and recreational communities. From training modules to field-ready testing utilities.

Featured

Training Modules

Structured training programs for vehicle sound enforcement and compliance testing.

Law Enforcement / Code Enforcement Module
Civilian Module — Race Tracks & Recreational

Monitoring

Environmental Noise Control

Noise Camera traffic monitoring expansion for automated sound enforcement in communities and near sensitive areas.

Utilities

Sound Testing RPM Utilities

Full Version — Law Enforcement
Basic Version — Civilian

Coming Soon

USFS Spark Arrester Field Inspection Utility

A dedicated field inspection utility for spark arrester compliance — currently in development.

02 — EPA Certification

Vehicle Sound Emission Testing

EPA certification testing for motorcycles and replacement exhaust systems under 40 CFR Part 205. Ensuring compliance with federal noise emission standards for manufacturers and importers.

Motorcycle Manufacturers Exhaust System Manufacturers Importers

                Services
                EPA Noise Emission Compliance Testing
Motorcycle Sound Level Certification
Replacement Exhaust System Testing
Pre-certification Consultation

            

03 — DOT Compliance

FMVSS Vehicle Inspections

DOT compliance inspections for new vehicle importers per NHTSA requirements. Physical inspection and documentation review to verify conformance with Federal Motor Vehicle Safety Standards.

Motorcycles Scooters ROHVs Low Speed Neighborhood Vehicles Utility Vehicles Electric Motorcycles Personal Transportation

Coming Soon

FMVSS Inspection Utility

Streamlined digital inspection workflow for DOT compliance verification — currently in development.

Coming Soon

Regulatory Compliance Educational Module

Comprehensive training on FMVSS requirements for importers and manufacturers.

04 — USFS Qualification

Spark Arrester Testing to USFS Standards

USFS-standard spark arrester qualification testing using calibrated Flow Bench equipment. A rigorous three-step process ensuring arrester compliance for recreational and off-highway vehicles operating on national forests and public lands.

01

Component Inspection

Physical evaluation of arrester construction and materials

02

Application Preparation

Documentation and test configuration for qualification submission

03

Physical Testing

Flow Bench performance testing to USFS standards

Calibrated Flow Bench Equipment
                    All physical testing is performed using professionally calibrated Flow Bench equipment, ensuring accurate and repeatable results that meet USFS qualification requirements.
                

05 — Equipment

Products & Calibrations

Professional sound level measuring instruments and calibration services to keep your equipment accurate and field-ready.

Instruments

Sound Level Measuring Instrument Kits

Complete measurement kits for vehicle sound level testing — configured for law enforcement, code enforcement, and track-side use.

Inquire

Service

Accuracy Calibrations

Scheduled calibration services for sound level meters and related instrumentation. Maintain measurement accuracy and compliance.

Schedule

06 — Questions

Frequently Asked Questions

Common questions about our testing, certification, and compliance services for manufacturers and importers.

What is EPA noise emission testing for motorcycles?

EPA noise emission testing verifies that motorcycles and motorcycle exhaust systems meet federal sound limits established under 40 CFR Part 205. DPS Technical performs certification testing for manufacturers and importers, including new motorcycle models and replacement exhaust systems, to ensure compliance before products reach the U.S. market.

Who needs FMVSS DOT compliance inspections?

Importers of new vehicles — including motorcycles, scooters, ROHVs, low-speed neighborhood vehicles, utility vehicles, electric motorcycles, and personal transportation vehicles — need FMVSS inspections to verify conformance with Federal Motor Vehicle Safety Standards before the vehicles can be legally sold in the United States.

What is USFS spark arrester qualification testing?

USFS spark arrester qualification testing evaluates whether a spark arrester meets U.S. Forest Service standards for use on off-highway vehicles operating on national forests and public lands. DPS Technical uses calibrated Flow Bench equipment to perform a rigorous three-step process: component inspection, application preparation, and physical performance testing.

How often should sound level meters be calibrated?

Sound level meters should be calibrated on a regular schedule to maintain measurement accuracy and meet compliance requirements. DPS Technical provides scheduled calibration services for sound level meters and related instrumentation used by law enforcement, code enforcement, and testing facilities.

Does DPS Technical provide EPA testing for replacement exhaust systems?

Yes. DPS Technical performs EPA noise emission compliance testing for replacement exhaust systems in addition to complete motorcycles. Manufacturers and importers of aftermarket exhaust systems can have their products tested to verify they meet federal noise emission limits under 40 CFR Part 205.

Where are DPS Technical's testing facilities located?

DPS Technical operates from two locations: a West Coast facility in Kern County, California, and an East Coast facility in Onslow County, North Carolina. This bi-coastal presence enables efficient service for manufacturers and importers across the United States.