2. Calculation of additional pension where contributions equivalent premium paid or treated as paid
3. Calculation of additional pension: earnings partly from employment with contracted-out scheme membership
4. Calculation of additional pension: earnings partly from employment with scheme membership
5. Calculation of additional pension: other cases of mixed forms of contracted-out employment
5A.Earnings factor credits eligibility for pensioners to whom employment and support allowance was payable
5B.Earnings factor credits eligibility for certain persons entitled to universal credit
5C.Earnings factor credit eligibility for pensioners to whom section 1A of the 2007 Act applied