Parties may register for specific exemptions listed in Annex A or B pursuant to paragraph 3 of Article 4. These specific exemptions have a limited timeframe and shall expire five (5) years after the date of entry into force of the Convention with respect to that particular chemical (paragraph 4 of Article 4), unless an earlier date is indicated in the Register by the Party or an extension is granted by the Conference of the Parties under paragraph 7 of Article 4.
By decision SC-9/1 on Exemptions, adopted in May 2019, the Conference of the Parties noted, among other things, that as there were no longer any Parties registered for specific exemptions for lindane for use as a human-health pharmaceutical for the control of head lice and scabies as a second-line treatment, no new registrations may be made with respect to that chemical.