211 CMR, § 15.09
The Commissioner shall have access to all data collected by a Statistical Agent. A Statistical Agent shall provide any Statistical Reports or Annual Statistical Compilations that it produces from aggregating Insurer data it collects through the Statistical Plan to the Commissioner as required or requested by the Commissioner.
Unless specifically requested by the Commissioner, Statistical Agents shall not provide Statistical Reports or Annual Statistical Compilations to the Commissioner or any other party in a format where it appears to be possible to identify information about individual Insurers that such Insurers have not already filed in the public domain, or could be used to identify a particular policyholder or claimant.
211 CMR, § 15.09