Section 512.22 - Deduction from pay(a) Deduction by salary offset, from an employee's disposable current pay, shall be subject to the following circumstances:(1) When funds are available, the Board will collect debts owed the United States in full in one lump-sum. If funds are not available or the debt exceeds 15% of disposable pay for an officially established pay interval, collection will normally be made in installments.(2) The installments shall not exceed 15% of the disposable pay from which the deduction is made, unless the employee has agreed in writing to a larger amount.(3) Deduction will commence with the next full pay interval following notice that deductions will commence.(4) Installment deductions will not be made over a period greater than the anticipated period of employment.52 FR 43897, Nov. 17, 1987, as amended at 55 FR 3051, Jan. 30, 1990