Pears which do not meet the requirements of the then effective grade, size, or quality regulations shall not be shipped or handled for consumption by any charitable institution or for distribution by any relief agency or for conversion into any by-product, unless there first shall have been delivered to the manager of the Fresh Pear Committee a certificate executed by the intended receiver and user of said pears showing, to the manager's satisfaction, that said pears actually will be used for one or more of the aforesaid purposes.