[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: 14CFR99.31] [Page 298] TITLE 14--AERONAUTICSAND SPACE CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) PART 99--SECURITY CONTROL OF AIR TRAFFIC--Table of Contents Subpart A--General Sec. 99.31 Radio failure; IFR. If a pilot operating an aircraft under IFR in an ADIZ cannot maintain two-way radio communications, the pilot shall proceed in accordance with Sec. 91.185 of this chapter. [Doc. No. 25113, 53 FR 18217, May 20, 1988, as amended by Amdt. 99-15, 54 FR 34331, Aug. 18, 1989]