An interstate sale control process includes seller authentication, buyer registration or authentication, transaction order identification and authorization, transaction authentication with authoritative seal, and transaction reporting. In one aspect of the invention, the seal is a shipping label with indicia of regulatory compliance. In another aspect of the invention, the sale control process is seller driven by way of a data processing unit and the data processing unit may be internet accessible. The seal may further include encrypted information, which may alternatively include electronic encryption by way of a smart chip or the like.
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