Section 236.1 — Excise Tax Act: Adjustment if property not exported or supplied

If a registrant has received a zero-rated supply of a continuous transmission commodity included in section 15.2 of Part V of Schedule VI and the commodity is neither exported, as described in paragraph (a) of that section, nor supplied, as described in paragraph (b) of that section, by the registrant, the registrant shall, in determining the net tax of the registrant for the reporting period that includes the earliest day on which tax, calculated at the rate set out in subsection 165(1), would, in the absence of that section, have become payable in respect of the supply, add an amount equal to interest, at the prescribed rate, on the total amount of tax that would have been payable in respect of the supply if it were not a zero-rated supply, computed for the period beginning on that earliest day and ending on the day on or before which the return under section 238 for that reporting period is required to be filed.