Section 98 of the 1970 Act (special returns etc) shall apply for the purposes of repayments under Part III or IV as if any reference to a provision in the Table in that section were a reference to a provision in those Parts other than regulation 16.

Section 99 of the 1970 Act (assisting in the preparation of incorrect returns etc.) shall apply in the case of returns, statements, declarations, accounts, information or documents for the purposes of repayments under Part III or IV as they apply for the purposes of income tax.

Sections 100 and 100A (determination of penalties by officer of Board), 100B (appeals against penalty determinations), 100C (penalty proceedings before Commissioners), 100D (penalty proceedings before court), 102 (mitigation of penalties), 103(3) and (4) (time limits for penalties), 103A (interest on penalties), 104 (savings for criminal proceedings) and 105 (evidence in case of fraudulent conduct) of the 1970 Act shall apply to penalties in connection with repayments under Part III or IV as they apply to penalties in connection with income tax.

Sections 112 to 115A of and Schedule 3A to the 1970 Act (documents) shall apply to assessments, returns or any other documents made, required, issued, served, sent or lodged for the purposes of or in connection with repayments under Part III or IV as they apply to documents for the purposes of or in connection with income tax.

Section 118(2) of the 1970 Act (failure to act within limited time) shall apply in relation to anything required to be done under Part III or IV as it applies in relation to anything required to be done under that Act.

For the purposes of these Regulations the amount of a repayment covered by any assessment under Part III shall not be deemed to be finally determined until that assessment can no longer be varied, whether by any Commissioners on appeal or by the order of any court.