Mo. Rev. Stat. § 70.795
Notwithstanding the provisions of sections 610.010 to 610.035, RSMo, to the contrary, any retirement plan as defined in section 105.660, RSMo, located in a city not within a county, providing retirement benefits for general employees shall provide, upon request by any retiree organization, sufficient information enabling such organization to contact retired members.
(L. 2001 S.B. 290 § 1)