Operator systems equipment is generally classified according to operating arrangements of which the following are typical:
S.D. Admin. R. 20:10:28:22
General Authority: SDCL 49-1-11, 49-31-5, 49-31-18.
Law Implemented: SDCL 49-31-18.
Operator systems equipment - category 1, 47 C.F.R. § 36.123(a) (1991).