Paragraph 10
Subject to sub-paragraph (1) and paragraphs 11 and 15, where—
a person has become entitled to a retirement pension (“the first pension”),
after becoming so entitled he entered further employment which was or became local government employment, and
he has ceased to hold the further employment and has become entitled in relation to it to a retirement pension (“the second pension”),
he may, by notice in writing to the authority which is the appropriate administering authority in relation to the second pension, given within three months after the date on which he became entitled to the second pension, elect that this Part of this Schedule is to apply to him.
Sub-paragraph (1) does not apply if the first pension is a pension—
to which the person became entitled under regulation D19, or
which is reduced under regulation D13.
In this Part of this Schedule “retirement pension” includes an annual pension under the former regulations and a retirement pension under the 1974 regulations or the 1986 regulations.