[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: 46CFR122.606] [Page 396-397] TITLE 46_SHIPPING (This book contains parts 90 to 139) CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PART 122_OPERATIONS--Table of Contents Subpart F_Markings Required Sec. 122.606 Escape hatches and emergency exits. All escape hatches and other emergency exits used as means of escape must be marked on both sides in clearly legible letters at least 50 millimeters (2 inches) high: ``EMERGENCY [[Page 397]] EXIT, KEEP CLEAR'', unless such markings are deemed unnecessary by the cognizant OCMI.