35.4. A person contemplated in this division who has served a notice of objection in respect of an assessment or who is a party to an appeal brought under the Taxation Act (chapter I-3) shall keep the registers, books of account and vouchers necessary for the examination of the objection or the appeal until the time for appeal prescribed in sections 1066 and 1067 of the Taxation Act has expired or until judgment on the appeal is rendered, and, where such is the case, until any other time for appeal has expired or the judgment on it is rendered.