20:10:35:11Telephone solicitors are required to make

updates from register. Any telephone solicitor who makes unsolicited telephone calls to South Dakota residential telephone subscribers is required to make updates from the South Dakota register every thirty-one days.

Source: 30 SDR 25, effective August 28, 2003; 31 SDR 63, adopted November 9, 2004, effective January 1, 2005.