229 (1) A company is prohibited from charging a toll unless the toll is (a) specified in a tariff that is filed with the Regulator and is in effect; or (b) approved by an order of the Commission. (2) If the oil, gas or other commodity transmitted by a company through its pipeline is the property of the company, the company must, if requested by the Regulator, file copies of any contract it enters into for the sale of the oil, gas or commodity, or any amendments it makes to such a contract, with the Regulator and those copies are deemed, for the purpose of sections 225 to 240, to be a tariff filed in accordance with subsection (1).
Source
https://laws-lois.justice.gc.ca/eng/acts/C-15.1/section-229.htmlCanonical document at the regulator. Always cite this URL — not the Vantage detail page — in compliance evidence.