[Code of Federal Regulations] [Title 33, Volume 2] [Revised as of July 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 33CFR181.17] [Page 853] TITLE 33--NAVIGATION AND NAVIGABLE WATERS CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PART 181_MANUFACTURER REQUIREMENTS--Table of Contents Subpart B_Manufacturer Certification of Compliance Sec. 181.17 Label numbers and letters. Letters and numbers on each label must: (a) Be no less than one-eighth of an inch in height; and (b) Contrast with the basic color of the label, except that the date of certification may be permanently stamped, engraved, or embossed on the label.