Section 847.907 - How is the monthly annuity rate used to compute the present value of the deferred annuity without credit for NAFI service determined?(a) The monthly annuity rate used to compute the present value of the deferred annuity under § 847.906 of this subpart for CSRS retirees equals the monthly annuity otherwise payable under 5 U.S.C. chapter 83, subchapter III, including all reductions provided under that subchapter.(b) The monthly annuity rate used to compute the present value of the deferred annuity under § 847.906 of this subpart for CSRS Offset retirees is computed as described in paragraph (a) of this section, except that the reduction under section 5 U.S.C. 8349 does not apply.(c) The monthly annuity rate used to compute the present value of the deferred annuity under § 847.906 of this subpart for FERS retirees equals the monthly rate of annuity otherwise payable under 5 U.S.C. chapter 84, subchapter II, including all reductions provided under that subchapter.