541.47.9. A supply (other than a taxable supply brought into Québec) is made in a reserve if(1) in addition to being deemed to be made in Québec in accordance with Title I, it would be deemed to be made in the reserve under a provision of Title I or of a regulation made under it that deems a supply to be made in Québec if the provision and any other provision required for its application were read as if “Québec” were replaced by “reserve”, with the necessary modifications; or
(2) the tax provided for in Title I would be payable in respect of the supply but for section 541.47.18, the connection of the supply with the reserve and the application of the exemption provided for in section 87 of the Indian Act (R.S.C. 1985, c. I-5).