Sch SECOND para 5
In the event of the winding up of a board, every person who, at any time during the relevant period, was a registered producer shall be liable to contribute to the payment of the debts and liabilities of the board and to the payment of the costs and expenses of the winding up an amount assessed in such manner and subject to such limitations as may be provided by the scheme, but save as aforesaid no person shall be liable to contribute to the assets of the board in the winding up by reason only of his being or having been a registered producer or a member of the board. In this paragraph “ the relevant period ” means— (a) in a case where, before the commencement of the winding up, the scheme has been revoked, the year immediately before the revocation of the scheme; (b) in any other case, the year immediately before the commencement of the winding up.