[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: 46CFR108.219] [Page 130] TITLE 46_SHIPPING (This book contains parts 90 to 139) CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PART 108_DESIGN AND EQUIPMENT--Table of Contents Subpart B_Construction and Arrangement Sec. 108.219 Guardrails. (a) Except for exposed peripheries of a freeboard or superstructure deck, each guardrail must have at least two evenly spaced courses. (b) At exposed peripheries of a freeboard or superstructure deck, each guardrail must have at least three courses not more than 38 centimeters (15 in.) apart with the lowest course not more than 23 centimeters (9 in.) above the deck. (c) For a rounded gunwale, the guardrail must be at the edge of the flat of the deck.