(a) 5 U.S.C. 8115 outlines how compensation for partial disability is determined. If the employee has actual earnings which fairly and reasonably represent his or her wage-earning capacity, those earnings will form the basis for payment of compensation for partial disability. (See §§ 10.500 through 10.521 concerning return to work.) If the employee's actual earnings do not fairly and reasonably represent his or her wage-earning capacity, or if the employee has no actual earnings, OWCP uses the factors stated in 5 U.S.C. 8115 to select a position which represents his or her wage-earning capacity, which include the nature of the injury, the degree of physical impairment, the usual employment, the age of the employee, the employee's qualifications for other employment and the availability of suitable employment. However, OWCP will not secure employment for the employee in the position selected for establishing a wage-earning capacity.

(b) Compensation for partial disability is payable as a percentage of the difference between the employee's pay rate for compensation purposes and the employee's wage-earning capacity. The percentage is 66 2/3 percent of this difference if the employee has no dependents, or 75 percent of this difference if the employee has at least one dependent.

(c) The formula which OWCP uses to compute the compensation payable for partial disability employs the following terms: Pay rate for compensation purposes, which is defined in § 10.5(s) of this part; current pay rate, which means the salary or wages for the job held at the time of injury at the time of the determination; and earnings, which means the employee's actual earnings, or the salary or pay rate of the position selected by OWCP as representing the employee's wage-earning capacity.

(d) The employee's wage-earning capacity in terms of percentage is computed by dividing the employee's earnings by the current pay rate. The comparison of earnings and “current” pay rate for the job held at the time of injury need not be made as of the beginning of partial disability. OWCP may use any convenient date for making the comparison as long as both wage rates are in effect on the date used for comparison.

(e) The employee's wage-earning capacity in terms of dollars is computed by first multiplying the pay rate for compensation purposes by the percentage of wage-earning capacity. The resulting dollar amount is then subtracted from the pay rate for compensation purposes to obtain the employee's loss of wage-earning capacity.