46. Every sale or grant of land adjacent to the boundary line between Canada and the United States of America or to the boundaries between Québec and a province, entered into or made after 15 February 1924, shall carry with it, as of right, in favour of Québec, a reserve in full ownership in that part of such land lying within 18 metres and 288 thousandths of the line, and, in addition, the prohibition of erecting buildings or executing works on that piece of land.
The reserve contemplated in the first paragraph is of 18 metres in the case of a sale or grant made after 22 December 1977.
The provisions of this section do not apply in the case of a sale or grant for the purposes of the construction of railways, water-works, bridges, canals, ditches or other works of a public character, nor to the works or the erection of the buildings necessary for their operation.