19 CFR § 10.812 - Accumulation.

(a) An originating good or material produced in the territory of one or both of the Parties that is incorporated into a good in the territory of the other Party will be considered to originate in the territory of the other Party.

(b) A good that is grown, produced, or manufactured in the territory of one or both of the Parties by one or more producers is an originating good if the good satisfies the requirements of § 10.810 of this subpart and all other applicable requirements of General Note 30, HTSUS.