[Code of Federal Regulations] [Title 46, Volume 4] [Revised as of October 1, 2006] From the U.S. Government Printing Office via GPO Access [CITE: 46CFR130.450] [Page 449] TITLE 46_SHIPPING (This book contains parts 90 to 139) CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PART 130_VESSEL CONTROL, AND MISCELLANEOUS EQUIPMENT AND SYSTEMS-- Table of Contents Subpart D_Automation of Unattended Machinery Spaces Sec. 130.450 Machinery alarms. (a) Each alarm required by Sec. 130.460 of this subpart must be of the self-monitoring type that will both show visibly and sound audibly upon an opening or break in the sensing circuit. (b) The visible alarm must show until it is manually acknowledged and the condition is corrected. (c) The audible alarm must sound until it is manually silenced. (d) No silenced alarm may prevent any other audible alarm from sounding. (e) Each OSV must be provided with means for testing each visible and audible alarm. (f) Each OSV must provide battery power for the alarm required by Sec. 130.460(a)(8) of this subpart.