The Convention allows Parties to register specific exemptions and acceptable purposes for the production or use of certain POPs listed under its annexes A and B when alternatives do not exist yet or are not readily available.
This is intended to provide Parties with time to take measures to reduce or eliminate releases of POPs from intentional production and use. Registers are established to identify Parties that have specific exemptions and acceptable purposes.
Specific exemptions expire five (5) years after the date of entry into force of the chemical under the Convention unless the Party indicates an earlier date when registering for an exemption. Under certain circumstances other provisions of the Convention (Articles 4, 22 and 25) are also relevant when considering expiry of specific exemptions.
Acceptable purposes have no limited time frame, unless specified otherwise by the Conference of the Parties.
The Convention also allows registration for POPs in articles in use, i.e. for chemicals occurring as constituents of articles manufactured or already in use before or on the date of entry into force of the obligation with respect to these chemicals. Similarly, Parties can register for chemicals listed as closed-system site-limited intermediate.