An at-fault accident determination or surcharge goes to the Board of Appeal on Motor Vehicle Liability Policies and Bonds, part of the Division of Insurance. Here's the whole path, start to finish.
Your notice states the incident, the date, and — for an accident — the Standard of Fault (211 CMR 74.04) the insurer used to find you more than 50% at fault. Identify that standard; it's what you'll rebut.
For an at-fault accident, the surcharge is only proper if you're more than 50% at fault and the claim paid was more than $1,000 (excluding any deductible). If either fails, that's an argument in itself.
Pull together everything that tells your side: the police report, photos of both vehicles and the scene, repair estimates, a diagram, witness names and statements, and any dashcam footage. Evidence is what overcomes a presumption.
The appeal form is on the reverse of your notice. Fill it out, enclose the $50 appeal fee, and mail it to: At-Fault Accident Appeals, Division of Insurance, One Federal St., Suite 700, Boston, MA 02110. Your appeal must be filed and received within 30 days of the notice date — it's a received-by deadline, not a postmark date, so mail it early.
The Board of Appeal schedules a hearing and mails you the date, time, and location. You present your case to a hearing officer.
Bring two organized copies of your evidence. Explain, calmly and specifically, why the Standard of Fault does not fit your facts. You may appear on your own or be represented by an attorney.
A Memorandum of Finding and Order is mailed to you, typically within about 2–4 weeks. If the Board finds in your favor, the insurer must remove the surcharge and refund related premium.
If the decision goes against you, you may have the right to appeal the Board's decision to your county's Superior Court within a limited window. This is a more formal step — confirm the current deadline and filing fee before relying on them.
For an accident appeal, the single question is whether you were more than 50% at fault. The Standards of Fault in 211 CMR 74.04 list circumstances where fault is presumed — but every one of them applies only "unless a showing to the contrary is demonstrated by the evidence." Your job at the hearing is to make that showing.
Sources: Mass.gov — Appealing an At-Fault Accident Determination; Mass.gov — The Board of Appeal; 211 CMR 74.00; 211 CMR 134.00. This page is information only, not legal advice.