Each tester and grader’s license shall be posted in a conspicuous place in the room where the testing and grading is done.

Source: SL 1943, ch 9, § 5; SL 1951, ch 111, § 4; SL 1957, ch 92, § 4; SDC Supp 1960, § 4.1904; SL 1969, ch 8, § 3.