[Code of Federal Regulations] [Title 14, Volume 2] [Revised as of January 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 14CFR137.42] [Page 771] TITLE 14--AERONAUTICSAND SPACE CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) PART 137--AGRICULTURAL AIRCRAFT OPERATIONS--Table of Contents Subpart C--Operating Rules Sec. 137.42 Fastening of safety belts and shoulder harnesses. No person may operate an aircraft in operations required to be conducted under part 137 without a safety belt and shoulder harness properly secured about that person except that the shoulder harness need not be fastened if that person would be unable to perform required duties with the shoulder harness fastened. [Amdt. 137-10, 44 FR 61325, Oct. 25, 1979]