For an at-fault accident claim, a minor accident shall be an accident for which the claim payment, exclusive of any deductible, exceeds $1,000 but is not more than $5,000 under: (i) property damage liability coverage; (ii) collision coverage; (iii) limited collision coverage; (iv) for accidents occurring on or after January 1, 2006, bodily injury liability coverage if there is neither a surchargeable property damage liability coverage claim nor a surchargeable collision coverage claim; or (v) as a result of an accident with a bodily injury liability coverage claim. For an at-fault accident claim, a major accident shall be an accident for which the claim payment, exclusive of any deductible, exceeds $5,000 under: (A) property damage liability coverage; (B) collision coverage; (C) limited collision coverage; (D) for accidents occurring on or after January 1, 2006, bodily injury liability coverage if there is neither a surchargeable property damage liability coverage claim nor a surchargeable collision coverage claim; or (E) as a result of an accident with a bodily injury liability coverage claim. No motor vehicle liability policy, as defined by section 34A of chapter 90, shall apply an increase in premium as a result of an at-fault accident that does not satisfy the criteria for a minor or major accident. For purposes of this section, "premium" shall mean the cost of a policy, or coverage within a policy, to an individual policyholder based on the particular drivers and motor vehicles insured under the policy.
Mass. Gen. Laws ch. 175, § 113B 1/2