Rules of Operation
CAR Rules 21-40
CAR Rules 21 through 40 establish the policies and procedures by which Members, Assigned Risk Companies (ARCs) and
Assigned Risk Producers (ARPs) are governed with regard to the operation of, and participation in, the Massachusetts Automobile
Insurance Plan (MAIP).
Prior year versions of the Rules are available beginning with the July 16, 2007 Rules promulgated by the Commissioner of Insurance, through the current set of Rules. Also available is a summary of specific Rule amendments approved during each calendar year including a brief description and approval date of the Rule modification and the CAR Bulletin(s) in which the approval was announced.
DISCLAIMER: These compilations and summaries are prepared for informational purposes only and are not intended to replace the official versions of CAR Rules 21 through 40. CAR provides this information as a reference tool for the industry and the public, and while CAR endeavors to keep the information accurate to the best of its ability, CAR makes no representations or warranties of any kind, express or implied, about the completeness, accuracy, reliability, suitability or availability with respect to this information for any purpose. Any reliance on such information is strictly at your own risk. The interpretation of the CAR Rules may be affected by court decisions, regulations promulgated by the Commissioner of Insurance or bulletins issued by the Division of Insurance. Please seek legal counsel for assistance with the interpretation or application of individual Rules.
Prior Year Rules (as of the 1st of the Year)
2025 Rules
2024 Rules
2023 Rules
2022 Rules
2021 Rules
2020 Rules
2019 Rules
2018 Rules
2017 Rules
2016 Rules
2015 Rules
2014 Rules
2013 Rules
2012 Rules
2011 Rules
2010 Rules
2009 Rules
2008 Rules
July 16, 2007 Rules - promulgated by the Commissioner of Insurance
The Decision on Competition contains information relative to the establishment of competitive rating and the development of the MAIP.
CAR Rules 1-20
CAR Rules 1 through 20 establish the policies and procedures by which
Servicing Carriers, Members and producers are governed with regard to the operation of, and participation in, the Commonwealth
Automobile Reinsurers.