In certain emergency or mission critical situations, an agency may apply an annual premium pay cap instead of a biweekly premium pay cap, subject to the conditions provided in law and regulation. (See 5 U.S.C. 5547(b) and 5 CFR 550.106-550.107.) See NOTE 4 regarding the method of computing the annual premium pay cap.
See 5 CFR 531.603(b) and http://www.opm.gov/oca/08tables/locdef.asp for definitions of locality pay areas.
Certain special rate employees may have a higher biweekly premium pay cap at GS-15, step 10, than that shown in the table above. Since both locality rates and special rates may not exceed level IV of the Executive Schedule ($149,000 annual rate, $5,711.20 biweekly rate), the highest possible biweekly cap is $5,711.20.
The amount of the annual premium pay cap is computed by multiplying the applicable biweekly rate by the number of biweekly salary payments in the given year. (See 5 CFR 550.106(d).) The annual caps listed in the table above apply to employees with 26 biweekly salary payments in 2008. However, based on the payroll schedule of their servicing payroll provider, some employees will have 27 biweekly salary payments in 2008. For these employees, the applicable annual cap is equal to the applicable biweekly rate multiplied by 27.