[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: 29CFR788.17] [Page 705-706] TITLE 29--LABOR CHAPTER V--WAGE AND HOUR DIVISION, DEPARTMENT OF LABOR PART 788_FORESTRY OR LOGGING OPERATIONS IN WHICH NOT MORE THAN EIGHT EMPLOYEES ARE EMPLOYED--Table of Contents Sec. 788.17 Employees employed in both exempt and nonexempt work. The exemption for an employee employed in exempt work will be defeated in any workweek in which he performs a substantial amount of nonexempt work. For enforcement purposes nonexempt work will be considered substantial in amount if more than 20 percent of the time worked by the employee in a given workweek is devoted to such work. Where two types of work cannot be segregated, however, so as to permit separate measurement of the [[Page 706]] time spent in each, the employee will not be exempt.