[Code of Federal Regulations] [Title 29, Volume 3] [Revised as of July 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 29CFR783.37] [Page 659] TITLE 29--LABOR CHAPTER V--WAGE AND HOUR DIVISION, DEPARTMENT OF LABOR PART 783_APPLICATION OF THE FAIR LABOR STANDARDS ACT TO EMPLOYEES EMPLOYED AS SEAMEN--Table of Contents Sec. 783.37 Enforcement policy for non-seaman's work. In the enforcement of the Act, an employee will be regarded as ``employed as a seaman'' if his work as a whole meets the test stated in Sec. 783.31, even though during the workweek he performs some work of a nature other than that which characterizes the service of a seaman, if such nonseaman's work is not substantial in amount. For enforcement purposes, the Administrator's position is that such differing work is ``substantial'' if it occupies more than 20 percent of the time worked by the employee during the workweek. What Is an ``American Vessel''