71Quarantine premises
(1)If a person carrying on a trade has on or after 1st September 1972 incurred expenditure for the purposes of the trade in altering or replacing premises which immediately before that date were in use as authorised quarantine premises and—
(a)the expenditure was incurred in order to comply with requirements imposed by law for the use of premises on or after that date as authorised quarantine premises ; and
(b)an allowance or deduction in respect of the expenditure could not, apart from this section, be made in taxing the trade or computing the profits or gains arising from it,
Chapter I of Part III of the [1971 c. 68.] Finance Act 1971 shall apply as if the expenditure were capital expenditure incurred on the provision of machinery or plant for the purposes of the trade, as if the machinery or plant had in consequence of his incurring the expenditure belonged to him and had been in use for the purposes of the trade and as if the disposal value of the machinery or plant were nil.
(2)In subsection (1) above “authorised quarantine premises ” means premises authorised under the [1950 c. 36.] Diseases of Animals Act 1950 to be used for the detention and isolation of animals in quarantine.
(3)All such adjustments shall be made by discharge or repayment of tax as may be required for giving effect to the relief available under this section.
(4)Any disclaimer or claim under section 41(3) of the said Act of 1971 in respect of relief available under this section, and any claim for relief (or additional relief) under any other provision of the Tax Acts which is made in consequence of the relief available under this section, shall not be out of time if made within twelve months after the passing of this Act.