# Social Security Act 1975, Paragraph 4


The period to be taken into account by an assessment of the extent of a claimant's disablement shall be the period (beginning not earlier than the end of the injury benefit period, and limited by reference either to the claimant's life or to a definite date) during which the claimant has suffered and may be expected to continue to suffer from the relevant loss of faculty :
Provided that if on any assessment the condition of the claimant is not such, having regard to the possibility of changes therein (whether predictable or not), as to allow of a final assessment being made up to the end of the said period—
(a) a provisional assessment shall be made, taking into account such shorter period only as seems reasonable having regard to his condition and that possibility ; and
(b) on the next assessment the period to be taken into account shall begin with the end of the period taken into account by the provisional assessment.

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Source: https://www.legislation.gov.uk/ukpga/1975/14/schedule/8/paragraph/4 (the official version)
Page: https://openlegislation.uk/social-security-act-1975/schedule-8/paragraph-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.