85.3.1. Without restricting the generality of this Title, for the purposes of computing the income of a taxpayer derived for a taxation year from a metal recycling business, the cost of a property owned by the taxpayer as is described in the inventory of the business is deemed to be nil, unless the taxpayer,(a) where the property is acquired by the taxpayer from a person or a partnership who or which is registered for the purposes of the Québec sales tax, obtains from that person or partnership, at the time of the acquisition, the registration number that is assigned to the person or partnership in accordance with the Act respecting the Québec sales tax (chapter T-0.1); or (b) in any other case, fills out, at the time of the acquisition of the property, a document signed by the individual who delivers the property to the taxpayer and containing the information required by section 85.3.2 in relation to the acquisition.