51. In respect of any period during which a relevant school does not have a delegated budget (including any period during which the right of the Board of Governors of the school to a delegated budget is suspended under Article 53), a scheme shall provide for it to be the duty of the board, subject to Articles 52(8)(b) and 53(7), to make available to the Board of Governors of the school out of the school’s budget share a sum of money, in respect of such heads of expenditure as may be specified in the scheme in relation to the school, which the Board of Governors is to be entitled to spend at its discretion during that period on those heads of expenditure.