807 CMR, § 15.01
The Teachers' Retirement System has determined that it is necessary, and in the best interest of its active and retired members, beneficiaries and survivors, to provide certain personal information, specifically the address, dates of birth, and/or social security number, of these individuals for the sole and limited purpose of assisting in the proper administration of M.G.L. chs. 32 and 32B and the issuance of monthly benefit checks. The System recognizes the need to protect the privacy of its active and retired members, beneficiaries and survivors, and to that end will only provide such personal information to employees of the member's school district or former school district, or the relevant municipality, in connection with the administration of health benefits, retirement benefits, or some other form of benefit.
807 CMR, § 15.01