Massachusetts gives repair customers more written protection than many drivers realize. Under the Attorney General's regulation 940 CMR 5.05, a shop must record your complaint and mileage before it starts, get your authorization for specific repairs and a price, tell you about diagnostic fees and storage charges in advance, call you before adding work or exceeding the authorized price by more than ten dollars, fix poor workmanship at no charge and give you a dated, itemized bill. This page summarizes those rules in plain language. It is general information, not legal advice, and you should read the regulation itself if a dispute is serious.
Before any work begins
Before repairs start, the shop is required to write down your name, address and a phone number where you can be reached, the date and approximate time you dropped off the car, its year, make and registration number, the odometer reading, and either the specific repairs you requested or a short description of the problem. That intake record is why a good shop asks for your mileage and has you sign something at the counter. If you are handed nothing, ask for a copy of whatever you signed. The rules also say the shop must give you a copy of any document you sign, either at signing or when the work is finished.
Authorization: the price you approve is the price that counts
The regulation makes it an unfair or deceptive practice for a shop to charge you for repairs unless one of four conditions is met:
- Signed authorization with a total. You sign a document listing the specific repairs and the total price, parts and labor included.
- Signed authorization with a posted price list. You sign for specific repairs, and the charges are displayed clearly on the premises.
- Phone approval when the repair is not yet known. If the problem needs diagnosing, the shop must tell you the specific repairs and the total price before starting, and then obtain your approval.
- A written waiver with a dollar cap. You sign a separate waiver saying that you do not need to approve repairs or be told the cost as long as the total stays under the amount you write in.
Be careful with the waiver. A blank or very high limit hands the shop the decision. If you do sign one, fill in a figure you could live with. When approval is given by phone, the shop must keep a written record of the date and time, who gave and who received the authorization, the exact wording of what was approved and, if the shop placed the call, the number it called. These rules do not apply when you drop the car off outside business hours or ask for repairs to be done off the premises.
Disclosures the shop must make up front
Before obtaining your authorization, the shop must inform you of three things, or post them where customers can see them: the conditions under which it charges for storage and the daily or hourly rate; your right to have replaced parts returned to you at the end of the repair, or to inspect them if the parts must go back to a manufacturer under a warranty or rebuilding arrangement; and what, if anything, it charges for an estimate or diagnosis. The practical advice is simple. Ask for the old parts when you approve the work, and ask what the diagnostic fee is before you leave the car.
Changes, delays and extra work
- Extra repairs. If the technician finds other problems, or the price will exceed the authorized price (or the posted charge) by more than ten dollars, the shop must contact you and get approval before continuing.
- Timing. Repairs are supposed to be completed the same day the car is delivered, unless you are told about a delay and agree, or the shop can show the delay came from circumstances beyond its control that it could not have foreseen.
- Use of your car. A shop may not use your vehicle for anything except a test drive or delivery without your written authorization.
Honesty and quality
The regulation treats certain statements as unfair or deceptive: claiming repairs are necessary when they are not, saying the vehicle is dangerous or that continued use may be harmful when that is untrue, or saying work has been done when it has not. Charging for work never performed is also prohibited. If the work was not done in a good and workmanlike manner under accepted trade standards, the shop must remedy it promptly, at no charge. If something fails soon after a repair, go back with the invoice and ask for it to be corrected.
What the final bill must contain
| Item | What to look for |
|---|---|
| Dates and identity | Names and addresses of customer and shop, date the car was delivered |
| Vehicle | Year, make, registration number and odometer reading at drop-off |
| Repairs | An itemized list of the repairs performed |
| Parts | Each part by name and number, the price charged and the parts total |
| Part condition | A statement whether any part was used, reconditioned or rebuilt |
| Labor | Hours charged, whether actual or flat rate, the price per hour and the labor total |
| Total | The combined charge for parts and labor |
If a repair was sold at a flat price listed on a schedule posted in the shop when you dropped off the car, the bill need not break out each part or hour. Warranty repairs must be documented the same way. Compare the invoice to the estimate you signed before you pay. If you are trying to judge whether the labor hours are reasonable, see our overview of typical repair costs.
If something goes wrong
- Talk to the shop first. Bring the signed paperwork, the invoice and any photographs. The state's guidance suggests this step because the problem is often a misunderstanding that can be corrected quickly.
- Write it down. Send a short message or letter that describes the issue, quotes the part of 940 CMR 5.05 you believe applies and states what you want fixed. Keep a copy.
- Contact the Attorney General's consumer office. You can file a complaint online with the Consumer Advocacy and Response Division, and the state also works with local consumer programs that handle referred complaints.
- Consider small claims or legal help for significant losses.
Before you hire anyone, the article on choosing an honest repair shop can help you avoid disputes in the first place. The full text of the rule is available from Cornell's Legal Information Institute, and the attorney general's page getting your car repaired is the starting point for complaints. If a failed inspection is why you are at the shop, see what to do after a failed inspection for deadlines that run regardless of the repair.
Frequently Asked Questions
Does a Massachusetts repair shop have to give a written estimate?
The regulation requires either signed written authorization listing the specific repairs and the total price, or one of three alternatives: authorization with posted prices, phone approval of specific repairs and total price before work starts, or a signed waiver with a dollar limit. In practice, ask for a written estimate every time.
Can a shop charge more than the approved price?
Not without contacting you first. If the price will exceed what you authorized by more than ten dollars, or other repairs are needed, the shop must inform you and get your approval before proceeding.
Can I get my old parts back?
Yes. Shops must tell you that you have the right to have replaced parts returned at the end of the repair, or to inspect them if the parts must be sent back to a manufacturer under warranty or rebuilding arrangements. Ask when you authorize the work.
What must the final invoice include?
A dated, itemized bill listing the repairs, each part by name, number and price, whether any part was used, reconditioned or rebuilt, the labor hours and rate and whether hours are actual or flat rate, and the total.
Who handles complaints about auto repair?
The Massachusetts Attorney General's consumer office accepts complaints online and by hotline, and it can refer cases to local consumer programs. Try to resolve the issue with the shop in writing first.