SDCL § 34A-1-41: Entry for inspection to determine compliance--Refusal of access prohibited.

Any duly authorized officer, employee, or representative of the department may enter and inspect that part of any property, premise, or place in which the officer, employee, or representative has reasonable grounds to believe is the source of air pollution at any reasonable time for the purpose of investigating the air pollution or of ascertaining the state of compliance with this chapter and rules promulgated pursuant to this chapter. No person may refuse entry or access to any authorized representative of the department who requests entry for the purpose of investigation, and who presents appropriate credentials; nor may any person obstruct, hamper, or interfere with any such investigation.

Source: SL 1970, ch 203, § 8; SDCL Supp, § 34-16A-46; SL 1973, ch 222, § 8; SL 2011, ch 165, § 22.