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The FLSA authorizes the establishment of work periods of not less than seven nor more than 28 days for public safety personnel. The regulations establish the maximum allowable non-overtime hours as 212 hours per 28-day period for firefighters, and 171 hours per 28-day period for law enforcement officers. For tours of duty of less than 28 days, the maximum allowable non-overtime hours of work during the tour of duty must bear the same ratio as 212 hours to 28 days for firefighters (7.57 hours per day), and 171 hours to 28 days for law enforcement personnel (6.1 hours per day). For those local governments that may wish to use the “tour of duty” option, the maximum number of allowable hours in work periods of particular lengths before overtime compensation must be paid to public safety personnel for additional hours have been calculated in the following table:

Work Period (days) Maximum Hours
  Fire Police
28 212 171
27 204 165
26 197 159
25 189 153
24 182 147
23 174 140
22 167 134
21 159 128
20 151 122
19 144 116
18 136 110
17 129 104
16 121 98
15 114 92
14 106 86
13 98 79
12 91 73
11 83 67
10 76 61
9 68 55
8 61 49
7 53 43

A firefighter or law enforcement officer may perform work that is not related to fire protection or law enforcement activities. However, if more than 20 percent of an employee’s work hours are spent on unrelated activities, the employee cannot qualify for use of the tour of duty rules and would therefore have to be paid overtime on a time and one-half basis for any hours worked in excess of 40 hours in a seven-day period.

Public agency fire protection and law enforcement personnel may, at their own option, undertake employment for the same employer on an occasional or sporadic and part-time basis in a different capacity from their regular employment. The performance of such work does not affect the application of the special rule with respect to the regular employment. In addition, the hours of work in the different capacity need not be counted as hours worked for overtime purposes on the regular job, nor are such hours counted in determining the 20 percent limitation for non-exempt work. In order to qualify, the work must not be regularly scheduled. This special rule is narrowly construed by the DOL, and an employer must be careful to thoroughly examine the regulations found at 29 C.F.R. § 553.30 before relying on this rule.