These Regulations place restrictions on the international trade in, marketing and use of controlled substances. "Controlled substance" means any substance defined as such under the Montreal Protocol and includes all recycled, reclaimed or recovered substances. It is unlawful for any person other than an authorised supplier to import, export, sell, offer for sale or distribute a controlled substance if he or she is not an authorised purchaser. Any importation, exportation, sale, offer for sale or