Self-propelled vessels engaged in foreign commerce are required to use a pilot holding a valid MMC or license with appropriate endorsement as a first-class pilot when operating in the navigable waters of the United States specified in this subpart. [CGD 92-061, 60 FR 24796, May 10, 1995, as amended by USCG-2006-24371, 74 FR 11263, Mar. 16, 2009]