20.01. An ‘Employer’ for purposes of the Massachusetts Teachers’ Retirement System is an entity as defined in M.G.L. c.32, provided that such is limited to entities which are the Commonwealth or a political subdivision of the Commonwealth, or an agency or instrumentality of either of the foregoing. No employer which is not permitted to participate in a qualified governmental pension plan as defined in Code Sections 401(a) and 414(d) shall be permitted to participate in the Massachusetts Teachers' Retirement System.
REGULATORY AUTHORITY: 807 CMR 20.00: M.G.L. c. 15, §16; M.G.L. c. 32, §§ 1, 20(5)(b)
26 U.S.C. § 414(d)