South Dakota Administrative Rules — Title 64 (Revenue)
ARSD § 64:01:01:29 — New facilities refund or delay in payment -- Commencement of project
64:01:01:29. New facilities refund or delay in payment --
Commencement of project. For purposes of qualifying for a refund or delay
in payment of tax under SDCL chapter 10-45 , chapter 10-45B, chapter 10-46C, or SDCL 49-34A-80 to 49-34A-92, inclusive, commencement of the project means: (1) The first date earth is excavated for the purposes of constructing a project in the case of new construction or the expansion of an existing building or structure; (2) The beginning of modification or preparation of an existing facility for installation of production equipment; or (3) The delivery of production equipment to the purchaser if prior preparation is not required.
Source: official text