See Chapter 20, Code of Iowa: https://www.legis.iowa.gov/docs/code/20.pdf
AFSCME agreement: 2021-2023-AFSCME-Contract.pdf (iowa.gov)
AFSCME - Public Safety agreement: 2021-2023-AFSCME-PublicSafetyContract.pdf (iowa.gov)
United Faculty agreement: https://provost.uni.edu/sites/default/files/uni_united_faculty_and_bor_ma_21-23_-_signed.pdf