Paragraph 1
The weekly rate of earnings-related supplement of unemployment benefit, sickness benefit or a maternity allowance shall be ascertained by reference to the claimant's reckonable weekly earnings for the relevant year; and the weekly rate of earnings-related addition to a widow's allowance shall be ascertained by reference to the reckonable weekly earnings for that year of the widow's late husband.
" The relevant year " means the tax year last ending before the beginning of the current benefit year ; and " the current benefit year " means—
in relation to supplement of unemployment benefit, sickness benefit or a maternity allowance, the benefit year in which there falls the first day of the period of interruption of employment which includes the day in respect of which the supplement is payable ; and
in relation to addition to a widow's allowance, the benefit year which includes the date of the husband's death.