[Code of Federal Regulations] [Title 14, Volume 2] [Revised as of January 1, 2008] From the U.S. Government Printing Office via GPO Access [CITE: 14CFR137.42] [Page 1193] TITLE 14--AERONAUTICS AND 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]