Versions of South Dakota Codified Laws 5-18A-18. Specifications to promote economy and encourage competition--Circumstances under which brand name or equal specifications permitted on LawServer 2023 South Dakota Codified Laws 5-18A-18. Specifications to promote economy and encourage competition–Circumstances under which brand name or equal specifications permitted 2022 South Dakota Codified Laws 5-18A-18. Specifications to promote economy and encourage competition–Circumstances under which brand name or equal specifications permitted 2021 South Dakota Codified Laws 5-18A-18. Specifications to promote economy and encourage competition–Circumstances under which brand name or equal specifications permitted 2019 South Dakota Codified Laws 5-18A-18. Specifications to promote economy and encourage competition–Circumstances under which brand name or equal specifications permitted 2018 South Dakota Codified Laws 5-18A-18. Specifications to promote economy and encourage competition–Circumstances under which brand name or equal specifications permitted 2016 South Dakota Codified Laws 5-18A-18. Specifications to promote economy and encourage competition–Circumstances underwhich brand name or equal specifications permitted 2014 South Dakota Codified Laws 5-18A-18. Specifications to promote economy and encourage competition–Circumstances underwhich brand name or equal specifications permitted 2010 South Dakota Laws 5-18A-18 – Specifications to promote economy and encourage competition–Circumstances under which brand name or equal specifications permitted