[Code of Federal Regulations] [Title 46, Volume 1] [Revised as of January 1, 2007] From the U.S. Government Printing Office via GPO Access [CITE: 46CFR32.30-1] [Page 428] TITLE 46--SHIPPING CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY PART 32_SPECIAL EQUIPMENT, MACHINERY, AND HULL REQUIREMENTS--Table Subpart 32.30_Sound Powered Telephone, Voice Tube, and Engine Order Telegraph Systems Sec. 32.30-1 Voice tubes or telephone equipment--T/ALL. Each tankships must have communication equipment which meets the requirements in subchapter J (Electrical Engineering Regulations) of this chapter. [CGD 74-125A, 47 FR 15230, Apr. 8, 1982]