Colorado Auto Repair Law

Educational summary only – not legal advice.

Executive Summary

This document explains Colorado auto repair law in practical terms. It is written so that a consumer or a repair shop owner can understand exactly what is required, what is allowed, and what happens if the rules are violated.

Core Legal Framework

Colorado auto repair activity is governed primarily by the Motor Vehicle Repair Act (MVRA), CRS §§ 42‑9‑101 through 42‑9‑112. Where this Act is silent, general consumer protection law applies, primarily the Colorado Consumer Protection Act (CCPA).

1. Estimates & Authorization (Before Work Begins)

Written Estimate Requirement

·       A repair shop must provide a written estimate before performing repairs.

·       The estimate must include:

o   Total estimated cost

o   Expected completion date

When Written Authorization Is Not Required

·       If a vehicle is towed in or dropped off after business hours, the shop may perform up to $100 in labor and parts without prior authorization.

·       The customer may waive the right to a written estimate, but the waiver must be in writing.

Oral Authorization Rules

·       If written authorization is waived, the shop must:

o   Verbally communicate the written estimate

o   Record the customer’s approval on the work order

Diagnostic & Disassembly Rules

If the shop cannot prepare an estimate without disassembly: – The customer must be informed in writing of: – The cost of disassembly – The cost of reassembly if repairs are declined – Any parts that may be damaged or destroyed during inspection – Disassembly that prevents reassembly is not allowed without informed consent.

2. Over‑Estimate Charges (Cost Increases)

Statutory Limit

·       A shop may not charge more than the estimate plus the lesser of:

o   10% of the estimate, or

o   $25

Approval for Additional Charges

·       Any amount beyond this limit requires customer approval before the work is done.

·       Approval may be written or oral, but the shop must document:

o   Date and time of approval

o   Method of contact

o   Name of the person authorizing the work

3. Disclosure Timing & Completion Delays

·       If repairs will not be completed by the promised date, the shop must notify the customer within 24 hours after the missed date (excluding weekends and holidays).

·       Notice may be oral or written.

4. Replaced Parts – Customer Rights

Parts Return Rule

·       Customers are entitled to receive replaced parts if requested at the time of authorization.

Exceptions (No Automatic Return)

·       Body shop repair parts

·       Warranty or exchange parts (must be available for inspection)

·       Airbags and other inflatable restraint components

State Law Silence

·       Colorado law does not specify return timing or handling procedures. General consumer protection law applies.

5. Invoices & Record Retention

Invoice Requirements

When the vehicle is returned, the shop must provide a legible invoice including: – Customer information – Vehicle identification – Itemized parts and labor – Names or identifiers of technicians – Sublet repairs – Taxes, fees, and storage charges – Warranty information

Record Retention

·       Shops must retain work orders and related records for at least 3 years.

6. Cancellations, Reassembly & Storage Fees

Customer Cancellation

·       The shop may charge only for work already completed, not exceeding the estimate.

·       The customer must state whether reassembly is required.

·       Reassembly must be completed within 3 business days.

Storage Charges

·       Storage fees may begin on the 4th day after notice of completion.

·       Storage rates must be clearly disclosed on the repair authorization.

7. Enforcement & Penalties

Violations May Result In:

·       Unenforceable or voided charges

·       Civil liability

·       Criminal penalties for prohibited acts

Consumer Remedies

·       Consumers may pursue claims under the Colorado Consumer Protection Act for deceptive or unfair practices.

State Law Silence

·       The MVRA does not specify dollar penalty amounts. General civil and criminal statutes apply.

What This Means for Consumers

·       You control the cost — shops cannot exceed estimates without permission.

·       You have the right to documentation, transparency, and returned parts.

·       Unauthorized repairs are illegal and often unenforceable.

·       You have strong remedies if a shop misrepresents work or costs.

What This Means for Repair Shops

·       Written estimates and authorization are mandatory.

·       Over‑estimate work without approval is a statutory violation.

·       Documentation is not optional — poor paperwork creates liability.

·       Non‑compliance risks civil suits, criminal penalties, and consumer protection claims.

Bottom Line

If you run a repair shop or hire one in Colorado, everything that matters legally comes down to documentation, authorization, and transparency.

This law is designed to prevent surprise bills — and it works when properly enforced.