540 CMR 26.00et seq., is adopted by the Registrar of Motor Vehicles pursuant to M.G.L. c. 90, § 19K and M.G.L. c. 90, § 31 to establish regulations to verify compliance for persons whose vehicle has been cited three or more times for a violation of M.G.L. c. 90, § 19K. It is sufficient if the citations were disposed of by payment of a fine or the entering of a finding of responsible or default to each or any of the citations. 540 CMR 26.00 is applicable to any vehicle with a gross weight of less than 26,000 pounds which is equipped with a plow and/or a hitching mechanism on a plow frame except 540 CMR 26.01 shall not apply to state, county or municipally owned or operated vehicles.
540 CMR, § 26.01