An application for inspection service shall be regarded as filed only when it has been filled in completely and signed by the applicant and has been received in the office of the Chief of the Grading Branch. [36 FR 9814, May 28, 1971. Redesignated at 42 FR 32514, June 27, 1977, as amended at 43 FR 60138, Dec. 26, 1978. Redesignated at 46 FR 63203, Dec. 31, 1981]