Contracted-Out Deductions from Additional State Pension

Dear Sir or Madam,

Could you please provide a copy of the rules (or an explanation of
the rules) used to calculate Additional State Pension based on
earnings from 6 April 1978 to BEFORE 5 April 1997 (where earnings
for most years are above LEL):

- that is for persons who drew their state pension from state
retirement age where payment commenced prior to 5 April 1997
(before the Pension Act 1995 came into force);

- where at least one year their earnings were above the LEL and
were contracted-out;

- where at least one year their earnings were above the LEL and
were contracted-in.

Since the Pension Act 1995 came into force, the COD deduction has
been applied to additional pension earned during the whole period
between 6 April 1978 and 5 April 1997, irrespective of whether the
earnings were contracted-out or contracted-in. I wish to establish
if this was the case before the Pension Act 1995 came into force.

Also, are you able to clarify if the method of calculation changed
during the period 6 April 1978 and 5 April 1997, and if so the
nature of the changes?

Yours faithfully,

Peter White