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BIT Inspections

BIT Inspection Services in Los Angeles, Orange County & Throughout Southern California

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Call today for a schedule of services and rates: 714-878-2571

Discover hassle-free BIT inspections in Los Angeles, Orange County & Throughout Southern California, with Precision Diesel. Our mobile service ensures your commercial motor vehicle (CMV) compliance without the need to visit a shop. Call us at 714-TRUCKS1 for on-site inspections, prioritizing your fleet’s compliance and safety.
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Who Needs a BIT Inspection in California?

As of 2016, BIT inspections are mandatory for any commercial motor vehicle (CMV) with a Gross Vehicle Weight Rating exceeding 10,000 pounds. This includes semis, medium-duty trucks, and buses, ensuring their safety and compliance with California regulations.
BIT inspections aim to keep commercial motor vehicles safe on the road, requiring inspections every 90 days for most vehicles (as opposed to annual DOT inspections). Specific carriers, such as school buses, SPAB, PAB, and GPPV carriers, must ensure each bus undergoes inspection every 3,000 miles or 45 calendar days, prioritizing regular safety checks.

How Often is a BIT Inspection Required in California?

What is a BIT Inspection?

A BIT inspection, or Basic Inspection of Terminals, is a mandatory California commercial vehicle inspection designed to ensure trucks, trailers, and other commercial motor vehicles (CMVs) meet safety and regulatory standards. Unlike standard DOT inspections, BIT inspections are focused on terminal-level compliance, helping fleet managers and owner-operators maintain safe, road-ready vehicles under California CHP regulations.

Key points about BIT inspections:

  • Required for vehicles over 10,001 lbs GVWR, including trucks and trailers.
  • Ensures truck safety compliance, fleet safety inspections, and proper vehicle maintenance records.
  • Conducted every 90 days for regulated fleets to maintain BIT certification.

At Precision Diesel, our CHP-certified diesel technicians specialize in BIT inspections California, ensuring your fleet passes inspections efficiently, avoiding fines, and keeping your trucks on the road.

What Our Clients Are Saying

BIT Inspection Requirements in California

Understanding BIT inspection requirements in California is essential for fleet compliance. California mandates that all commercial vehicles over 26,001 lbs GVWR undergo regular 90-day truck inspections at authorized facilities or mobile service providers.

Requirements include:

  • A complete BIT inspection form documenting vehicle condition and completed checks.
  • Proper truck maintenance records for brakes, tires, suspension, steering, and engine components.
  • Placement of 90-day BIT inspection stickers on inspected vehicles for proof of compliance.
  • Routine fleet vehicle inspections to meet CHP BIT inspection standards.

Precision Diesel helps fleets meet California CHP truck inspection requirements by performing thorough BIT inspections for trucks, trailers, and heavy-duty equipment, reducing the risk of violations and shutdowns.

Get In Touch

Call or text 714-878-2571. Or complete the form below for more information about our BIT Inspection in Southern California​.
Many fleet managers ask: “What is the difference between a BIT and a DOT inspection?” While both focus on commercial truck safety, the scope and regulatory authority differ.
Feature BIT Inspection DOT Inspection
Authority California Highway Patrol (CHP) Federal / State DOT
Frequency Every 90 days for regulated fleets Annually or pre-trip
Focus Terminal-level compliance, fleet safety Vehicle roadworthiness, mechanical compliance
Documentation 90-day BIT inspection form & stickers DOT inspection report & decals
Applicable Vehicles Trucks over 10,001 lbs GVWR, fleet vehicles Commercial vehicles nationwide, varies by weight class
By understanding the difference between BIT and DOT inspections, fleets can schedule the correct inspections and maintain truck safety standards, avoiding penalties and ensuring regulatory compliance.

BIT vs DOT Inspections: Key Differences

Detailed BIT Inspection Checklist for Fleets

Our commercial vehicle inspectors follow a comprehensive BIT inspection checklist to verify every critical system:

Vehicle Systems Checked:

  • Brakes – Air brake functionality, wear, and line integrity
  • Wheels & Tires – Tread depth, inflation, and axle load compliance
  • Suspension – Springs, shocks, and chassis integrity
  • Steering System – Linkages, power assist, and wheel alignment
  • Engine & Drive Components – Fluids, belts, and overall performance
  • Trailer Components – Lights, brakes, suspension, and coupling devices
  • Safety Equipment – Fire extinguishers, reflective triangles, seatbelts, and horn function

A completed BIT inspection form and proper 90-day BIT inspection stickers ensure your fleet is compliant and ready for CHP review.

Performing BIT inspections every 90 days offers measurable benefits:

  • Avoid fines & penalties with fully compliant inspections.
  • Reduce truck repair costs by catching issues early.
  • Enhance fleet safety inspections and driver protection.
  • Maintain truck compliance with California BIT standards.
  • Prevent violations and shutdowns, keeping operations smooth.
  • Improve fleet management through detailed inspection records.
  • Ensure commercial vehicle safety requirements are met consistently.

Precision Diesel combines CHP BIT inspection expertise with mobile service capabilities to maximize fleet uptime and safety.

Benefits of Regular BIT Inspections

Integrating Preventive Maintenance with BIT Compliance

BIT inspections are most effective when paired with preventive maintenance programs. Regular maintenance not only ensures your trucks meet California truck safety standards, but also increases inspection pass rates.

Preventive maintenance for BIT compliance includes:

  • Scheduled truck inspection intervals aligned with 90-day BIT inspections
  • Systematic checks of brakes, tires, suspension, steering, and engine
  • Accurate vehicle maintenance records to support compliance audits
  • Early detection of wear-and-tear, reducing downtime and truck repair costs

By integrating preventive maintenance with BIT inspections, fleet managers gain peace of mind knowing their commercial motor vehicles are safe, compliant, and ready for CHP review.

Preventative Maintenance Provider in Newport Beac

Trusted General California Diesel Repair Near You

Whether you need routine maintenance or urgent repairs, our team of skilled diesel mechanics is ready to provide fast, reliable service near you. Proudly serving Newport Beach, Huntington Beach, El Segundo, La Palma, and surrounding areas. Don’t wait for small problems to become big — call us now today to schedule your service and get back on the road faster!

BIT Inspection FAQs

A BIT inspection, or Basic Inspection of Terminals, is a California commercial vehicle safety inspection conducted by CHP-certified technicians. It ensures trucks, trailers, and fleet vehicles meet truck safety standards, maintain proper maintenance records, and comply with CHP regulations. BIT inspections are required for vehicles over 10,001 lbs GVWR and help fleets avoid fines, shutdowns, and safety violations.
Any commercial vehicle operating in California over 10,001 pounds GVWR — including trucks, trailers, and fleet vehicles — is subject to BIT inspections California. Vehicles exceeding 26,001 lbs GVWR have additional inspection requirements, and fleets are responsible for maintaining compliance every 90 days.
A BIT inspection is required every 90 days for regulated commercial fleets. This ensures your trucks and trailers remain compliant with California CHP truck inspection regulations and helps prevent costly violations.

The main difference is regulatory scope:

  • BIT inspections are California-specific, terminal-focused, and conducted for fleet compliance.
  • DOT inspections follow federal standards and ensure mechanical roadworthiness nationwide.

Precision Diesel provides both DOT vs BIT inspection guidance so fleets stay compliant at state and federal levels.

BIT certification confirms that a commercial vehicle or fleet has passed a CHP BIT inspection. Certification requires a completed BIT inspection form, proper 90-day BIT inspection stickers, and verified vehicle maintenance records. Fleets maintain certification by scheduling inspections every 90 days.
Failing a CHP BIT inspection can result in fines, vehicle shutdowns, or operational delays. Immediate corrective action is required, and fleets must schedule a reinspection to regain compliance. Precision Diesel provides comprehensive BIT inspections and preventive maintenance advice to minimize the risk of failing inspections.
Yes. Precision Diesel specializes in 90-day BIT inspections, including mobile services throughout Southern California. We ensure all trucks, trailers, and CMVs are fully compliant with California CHP regulations and properly documented.
Absolutely. Our team provides fleet inspection prep, including a full BIT inspection checklist, verification of truck maintenance records, and placement of 90-day BIT inspection stickers. This helps fleets pass inspections efficiently, reduce downtime, and maintain compliance with truck safety standards.
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Serving Los Angeles, Orange County, and Riverside County

Precision Diesel, based in Southern California, proudly extends its mobile fleet maintenance and repair services across Los Angeles, Orange County, and Riverside County. Our dedicated team serves various cities, including Santa Ana, Long Beach, Irvine, Anaheim, Torrance, Downey, Santa Monica, El Monte, Pasadena, West Covina, Rancho Cucamonga, Ontario, Fallbrook, Carlsbad, Oceanside, Laguna Niguel, San Clemente, Pomona, Corona, Yorba Linda, Highland, and more.

Committed to providing reliable and efficient services, we prioritize your fleet’s performance and convenience. Even if your city is not listed, feel free to contact us on our phone line 714-TRUCKS1, as we continually expand our service areas to better serve our valued clients.

Keep Your Fleet Compliant with Expert BIT Inspections

Ensuring your trucks and fleet vehicles meet CHP BIT inspection requirements is not just about compliance — it’s about safety, reliability, and avoiding costly penalties. With Precision Diesel’s professional BIT inspections, your fleet stays road-ready, fully documented, and aligned with California truck safety standards.

Don’t risk violations or downtime — schedule your BIT inspection today and keep your fleet compliant and safe on California roads.

Call us now at 714-878-2571 or book your mobile BIT inspection online and ensure your trucks pass every inspection without delay.

Los Angeles, Orange, Riverside County & NEARBY Areas

220 Newport Center Drive, Suite #11-532
Newport Beach, CA 92660, USA

Dispatch: (714) TRUCKS1

Dispatch: 714-878-2571

Monday - Friday 7:00AM - 6:00PM
Saturday By Appointment

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