20:10:23:02Separate categories for each type of advertising

required. At the time of each rate filing all South Dakota advertising expenses claimed shall be reported to the commission in one of the ten following categories: institutional advertising, rate justification advertising, promotional advertising, political advertising, conservation advertising, safety advertising, load factor advertising, environmental advertising, informational advertising, and advertising required by law.

Source: 5 SDR 1, effective July 25, 1978; 12 SDR 151, 12 SDR 155, effective July 1, 1986.