Versions of South Dakota Codified Laws 1-41-16. Environmental protection functions of department and secretary on LawServer 2023 South Dakota Codified Laws 1-41-16. Environmental protection functions of department and secretary 2022 South Dakota Codified Laws 1-41-16. Environmental protection functions of department and secretary 2021 South Dakota Codified Laws 1-41-16. Environmental protection functions of department and secretary