What to include in a sublet calibration agreement

While many shops outsource at least some of their ADAS calibrations to a sublet provider and it’s an efficient way to maximize profit for everyone, there are risks involved.

Say a vehicle comes back three months after you repaired it. The customer is filing a claim, saying their automatic emergency braking system didn't activate before a rear-end collision. Your records show the forward-facing camera calibration was sublet to a third-party provider. The calibration report they sent you was one page. It listed the vehicle and the date, and that's it.

So who's responsible?

Who owns the sublet calibration agreement

For most shops, the honest answer is you. Your name is on the repair order, and your customer never met the sublet provider. Without a written agreement defining exactly what your provider was required to do — and what documentation they owed you — you have very little to stand on.

According to Revv's 2025 Industry Benchmark Report, shops spend an average of $23,990 per year outsourcing ADAS calibration work to sublet providers. That's a significant financial relationship — and for most shops, it's operating on a handshake.

This post covers what every sublet calibration agreement should include, and why formalizing these relationships is one of the most important steps a shop can take before FMVSS 127 makes AEB standard on every vehicle entering your bays.

Why a written agreement matters

When work leaves your facility, your visibility into how it's performed disappears. You're trusting your sublet provider to follow current OEM procedures, use properly maintained equipment, and deliver documentation that will hold up to insurer scrutiny (or worse, legal scrutiny).

Courts and insurance companies generally treat sublet relationships as an extension of your operation, not a separate transaction. Your customer chose your shop, you chose the sublet provider, and you signed off that the vehicle was safe and ready to drive. That chain of decisions — and responsibility — typically lands with you.

A written agreement doesn't eliminate that responsibility, but it does three important things:

• Sets clear expectations for your provider
• Creates accountability when those expectations aren't met
• Gives you documentation that demonstrates due diligence if a claim arises

With our report finding that 77% of shops reporting insurance pushback on ADAS charges at least sometimes, and calibration-related liability exposure growing as ADAS systems become standard equipment, the stakes of an informal sublet relationship are only getting higher.

What clauses to include in a sublet calibration agreement

A strong agreement doesn't need to be lengthy; it just needs to be specific. These are the six areas every sublet calibration agreement should address to protect your shop from liability.

OEM procedure compliance

OEM requirements change, and a provider relying on outdated procedures creates real liability for your shop. Your agreement should require that the sublet provider:

• Uses most current manufacturer procedures, position statements, and TSBs for every job 
• Uses only OEM-approved equipment, with documentation of which equipment was used
• Can provide proof of manufacturer certification for any vehicles that require it
• Provides immediate notification if they cannot complete a calibration to OEM spec for any reason

Scope of work and performance standards

Limiting the agreement to what your provider can genuinely perform well protects both parties. Your agreement should require that the sublet provider:

• Operates only within clearly defined calibration types — static, dynamic, or both — and does not work on makes or systems outside their authorized scope
• Adheres to a callback provision covering what constitutes a failed calibration, who bears rework costs, and required response timeframe
• Certifies that static calibration environmental conditions — level floor, controlled lighting, required clearance — were met for each job

Documentation and recordkeeping

If you can't prove a calibration was performed correctly, insurers and courts will assume it wasn't. Your agreement should require that the sublet provider:

• Delivers documentation for every completed job including the OEM procedure followed (with version or date), equipment used, environmental conditions, before and after scan results, and technician certification of completion
• Provides documentation digitally in a format that integrates with your existing workflow
• Retains their own records for the same period you specify for your shop
• Flags any calibration where conditions weren't ideal or completion couldn't be fully verified

Insurance reimbursement terms

Reimbursement is already complicated, and adding a sublet provider can create new friction points. Your agreement should require that the sublet provider:

• Clarifies upfront whether their invoice is contingent on insurer reimbursement, or owed regardless, as ambiguity here causes conflict
• Supplies supplemental documentation and cooperates fully if an insurer disputes a charge
• Notifies your shop of any changes in how specific insurers handle reimbursement for their services

Liability and indemnification

No agreement eliminates liability exposure, but a clear indemnification provision shifts responsibility to the provider when a problem originates with their work. Your agreement should require that the sublet provider:

• Indemnifies your shop for claims, losses, and legal costs arising from their negligent work
• Carries completed operations coverage, as general liability alone leaves a gap for claims that arise after the vehicle has left
• Meets minimum coverage limits and provides a current certificate of insurance before any work begins
• Names your shop as an additional insured on their policy where possible
• Provides immediate notification if coverage lapses, is cancelled, or changes materially

Pricing and payment terms

Clear pricing terms prevent the disputes that damage sublet relationships over time. Your agreement should require that the sublet provider:

• Agrees to a clearly defined pricing structure, such as flat rate per calibration type, vehicle-specific rates, or a volume-based schedule
• Documents any backend discounts in writing — the benchmark report found shops receive an average 12% backend discount, and verbal agreements get misremembered when accounts change hands
• Accepts defined payment terms, invoicing requirements, and responsibility for rework costs when provider error is the cause
• Agrees to a process for handling pricing changes when OEM procedure updates significantly affect the time or equipment required

Putting it into practice

A written sublet agreement is a sign of professionalism, and good providers will recognize it as such. If a provider pushes back on being asked to document their procedures, certify their equipment, or carry adequate insurance, that tells you something important about how they operate.

When implementing new written agreements, start with your highest-volume sublet relationships and work your way through the rest. Even a straightforward letter of agreement covering the key provisions is better than an entirely informal arrangement.

Review agreements annually, and update them when OEM requirements change significantly, when a provider changes ownership or key personnel, or when you experience a quality issue that reveals a gap in your current arrangement.

And if you’re unsure which calibrations you should outsource, or even which are required, Revv can help. Revv helps shops manage the documentation side of sublet relationships by providing VIN-specific calibration requirements based on the repairs each vehicle needs. That way, everyone is working from the same current OEM procedures, and the paper trail that protects your shop is built automatically as work progresses.

Book a demo to see how Revv can help you manage the documentation standards your business requires.

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