Calculation methods Calculation methods England and Wales 4.B.8Calculation method A 4.B.9Calculation method B 4.B.10Calculation method C 4.B.11Calculation method D Notes on Part 4 Modifications C1 Pt. 4 excluded (1.4.2015) by The National Health Service Pension Scheme (Transitional and Consequential Provisions) Regulations 2015 (S.I. 2015/95), regs. 1(b), 21(2) Calculation methods