5 CFR §831.1501

1. (a)Allotment means a specified deduction from the annuity payments due an annuitant voluntarily authorized by the annuitant to be paid to an allottee.
2. (b)Allottee means the institution or organization to which the allotment is paid.
3. (c)Allotter means the annuitant from whose annuity payments an allotment is deducted.
4. (d)Annuity Payments means the net monthly annuity payment due an annuitant after all authorized deductions (such as those for health benefits, Federal income tax, overpayment of annuity, payment of a government claim, etc. have been made.