For the purposes of this Schedule–
(a) in a case where a claim for a rent allowance is made on or after 1st April 1989, the relevant date is the date on which entitlement to benefit commences;
(b) in a case where on 1st April 1989 there is, current on that date, a benefit period relating to a claim for an allowance in relation to the dwelling, the relevant date is–
(i) the date first occurring after 16th April 1989 on which any change of circumstances take effect; or
(ii) the date on which the benefit period ends, or if it ends before 17 April 1989, the date on which the next benefit period ends,
whichever is the earlier;
(c) in a case which would be an excluded tenancy under paragraph 1 of Schedule 2 to the Rent Officers Order but for the change to which sub-paragraph (a) or (b) of, or the rent increase to which sub-paragraph (c) of, that paragraph refers, the relevant date is–
(i) if the change or, as the case may be, rent increase affects a person’s entitlement to the allowance, the date on which his entitlement is affected;
(ii) if his entitlement is not affected, the date on which the change or, as the case may be, rent increase occurs;
(d) in a case where a rent officer makes both an interim determination and a further determination in accordance with paragraph 4 of Schedule 1 to the Rent Officers Order, the relevant date is–
(i) if the reasonable market rent determined under the further determination is higher than or equal to the amount determined under the interim determination, the date determined under the foregoing sub-paragraphs of this paragraph as appropriate;
(ii) if the reasonable market rent determined under the further determination is lower than the amount determined under the interim determination, the date on which the further determination is made by the rent officer or, if the authority has already paid benefit for the week in which that date falls, the following Monday, whichever the authority determines;
(e) in a case where the rent officer has made a re-determination under paragraph 1 of Schedule 4 to the Rent Officers Order, the relevant date is–
(i) if the reasonable market rent or, as the case may be, comparable rent for suitably sized accommodation determined under the re-determination is higher than or equal to the amount determined under the original determination, the date determined under the foregoing sub-paragraphs of this paragraph as appropriate;
(ii) if the reasonable market rent or, as the case may be, comparable rent for suitably sized accommodation determined under the re-determination is lower than the amount determined under the original determination, the date on which the re-determination is made by the rent officer or, if the authority has already paid benefit for the week in which that date falls, the following Monday, whichever the authority determines;
(f) in a case where–
(i) the dwelling is in a hostel; and
(ii) by virtue of regulation 12A(2) of the Regulations an application for a determination in respect of that dwelling is not required; and
(iii) there is current, on 9th October 1989, a benefit period relating to a claim for an allowance in relation to the dwelling,
the relevant date is the date (after that date) on which any change of circumstances takes effect or the date on which the benefit period subsequent to the benefit period current on 9th October 1989, begins, whichever is the earlier;
(g) in a case where–
(i) immediately before 10th April 1989 one of the occupiers of the dwelling was in receipt of income support under the Act and his applicable amount fell to be calculated in accordance with regulation 20 or regulation 71(1)(b) of, or paragraph 17 of Schedule 7 to, the Income Support (General) Regulations 1987; and
(ii) there is, on 10th April 1989, a benefit period relating to a claim for an allowance in relation to the dwelling,
the relevant date is the date (after 16th April 1989) on which any change of circumstances takes effect or the date on which the benefit period subsequent to the benefit period on 10th April 1989, begins, whichever is the earlier;
(h) in a case where–
(i) the dwelling is an assured tenancy by virtue of the Housing Act 1988 granted after 15th January 1989 but before 1st April 1989; and
(ii) there is, on 1st April 1989, a benefit period relating to a claim for an allowance in relation to the dwelling,
the relevant date is the date (after 16th April 1989) on which a relevant change of circumstances takes effect or the date on which the benefit period subsequent to the benefit period on 10th April 1989, begins, whichever is the earlier.