the World Health Organization, whose assessment shall be determinative as to medical and scientific matters, and bearing in mind the economic, social, legal, administrative and other factors it may consider relevant, may decide to terminate the exemption of the preparation from any or all control measures. Any decision of the Commission taken pursuant to this paragraph shall be communicated by the Secretary-General to all States Members of the United Nations, to non-member States Parties to this Convention, to the World Health Organization and to the Board. All Parties shall take measures to terminate the exemption from the control measure or measures in question within 180 days of the date of the Secretary-General's communication.
ARTICLE 4
Other special provisions regarding the scope of control
In respect of psychotropic substances other than those in Schedule I, the Parties may permit:
(a) the carrying by international travellers of small quantities of preparations for personal use; each Party shall be entitled, however, to satisfy itself that these preparations have been lawfully obtained; (b) the use of such substances in industry for the manufacture of non-psychotropic substances or products, subject to the application of the measures of control required by this Convention until the psychotropic substances come to be in such a condition that they will not in practice be abused or recovered;
(c) the use of such substances, subject to the application of the measures of control required by this Convention, for the capture of animals by persons specifically authorized by the competent authorities to use such substances for that purpose.
ARTICLE 5
Limitation of use to medical and scientific purposes
1. Each Party shall limit the use of substances in Schedule I as provided in article 7.
2. Each Party shall, except as provided in article 4, limit by such measures as it considers appropriate the manufacture, export, import, distribution and stocks of, trade in, and use and possession of, substances in Schedules II, III and IV to medical and scientific purposes.
3. It is desirable that the Parties do not permit the possession of substances in Schedules II, III and IV except under legal authority.
9