(a)

(1) If an agency reasonably determines that a preparatory or concluding activity is closely related to an employee's principal activities, and is indispensable to the performance of the principal activities, and that the total time spent in that activity is more than 10 minutes per workday, the agency shall credit all of the time spent in that activity, including the 10 minutes, as hours of work.

(2) If the time spent in a preparatory or concluding activity is compensable as hours of work, the agency shall schedule the time period for the employee to perform that activity. An employee shall be credited with the actual time spent in that activity during the time period scheduled by the agency. In no case shall the time credited for the performance of an activity exceed the time scheduled by the agency. The employee shall be credited for the time spent performing preparatory or concluding activities in accordance with paragraph (b) of §551.521 of this part.

(b) A preparatory or concluding activity that is not closely related to the performance of the principal activities is considered a preliminary or postliminary activity. Time spent in preliminary or postliminary activities is excluded from hours of work and is not compensable, even if it occurs between periods of activity that are compensable as hours of work.

[48 FR 36805, Aug. 15, 1983]