Versions of Nebraska Statutes 79-991. Employees retirement system; member; prior service credit; how obtained on LawServer 2023 Nebraska Statutes 79-991. Employees retirement system; member; prior service credit; how obtained 2022 Nebraska Statutes 79-991. Employees retirement system; member; prior service credit; how obtained 2021 Nebraska Statutes 79-991. Employees retirement system; member; prior service credit; how obtained 2019 Nebraska Statutes 79-991. Employees retirement system; member; prior service credit; how obtained 2018 Nebraska Statutes 79-991. Employees retirement system; member; prior service credit; how obtained 2016 Nebraska Statutes 79-991. Employees retirement system; member; prior service credit; how obtained 2015 Nebraska Statutes 79-991. Employees retirement system; member; prior service credit; how obtained 2014 Nebraska Statutes 79-991. Employees retirement system; member; prior service credit; how obtained 2013 Nebraska Statutes 79-991. Employees retirement system; member; prior service credit; how obtained 2010 Nebraska Statutes 79-991 – Employees retirement system; member; prior service credit; how obtained