To enable Parties to the Convention to take measures to reduce or eliminate releases of POPs from intentional production and use, for which alternatives do not exist yet or are not readily available, the Convention allows Parties to register specific exemptions for a specific period of time, as well as to register for acceptable purposes.
The Conference of the Parties decides which acceptable purposes are available when it adopts a decision amending the Convention to list a new chemical in the Annex.
Registers have been established for acceptable purposes relating to DDT and PFOS, its salts and PFOS-F.