Article 404. Accumulation

1. For purposes of determining whether a good is an originating good, the production of the good in the territory of one or more of the Parties by one or more producers shall, at the choice of the exporter or producer of the good for which preferential tariff treatment is claimed, be considered to have been performed in the territory of any of the Parties by that exporter or producer, provided that:

2. For purposes of Article 402(10) (TLCAN: Art. 402), the production of a producer that chooses to accumulate its production with that of other producers under paragraph 1 shall be considered to be the production of a single producer.