For purposes of subparagraph (B)(i)(I), the term “qualified State or local government retirement system” means a retirement system that—
(i)#
is established or maintained by a State or political subdivision thereof, or an agency or instrumentality of one or more States or political subdivisions thereof;
(ii)#
covers positions of some or all employees of such a State, subdivision, agency, or instrumentality; and
(iii)#
does not adjust cash retirement benefits based on eligibility for a reduction in premium under this paragraph.