On February 1, 2021, Senator Dave Schatz, President Pro Tem of the Senate, appointed Senator Paul Wieland (District 22) to the MOSERS Board of Trustees. Senator Wieland replaced Senator Wayne Wallingford on the Board.

As of November 2020, 434 active state employees working in a MOSERS benefit-eligible position live in Senator Wieland’s district earning an annualized payroll of $18.5 million as well as 425 MOSERS retirees or beneficiaries who receive $5.4 million in annualized pension benefits.

Senator Paul Wieland, a Republican, was elected to the Missouri Senate in 2014 and represents part of Jefferson County. Prior to the Senate, he served three terms in the House of Representatives. He was first elected in 1994 to represent the 101st District, elected in 2010 to represent the 102nd district, and again in 2012 to represent the 112th District.

Senator Wieland is the owner of Wieland Insurance Group, LLC and currently serves on the St. Pius X Advisory Board and the Jefferson County Community Partnership Board of Directors. Additionally, he has served on the Jefferson County Health Department Board of Trustees; the St. Joseph School Board; as a member of the Mastodon Arts & Sciences Fair Advisory Board; the University of Missouri Extension Council; and as a founding member of the Jeffco Business Network.

The MOSERS Board is responsible for establishing and maintaining board policies, procedures, and objectives for the retirement system's operations.

Trustees elected by members serve a four-year term. The State Treasurer and the Commissioner of Administration serve as Trustees during their respective terms of office. The two members of the Missouri Senate and the two members of the Missouri House of Representatives are appointed by the Senate Pro Tem and Speaker of the House, respectively. These General Assembly members serve as Trustees until they resign, are no longer members of the General Assembly, or are replaced by new appointments. Trustees appointed by the Governor serve as Trustees until they resign or are replaced by new appointments.