Parties that produce or use DDT are required to report the conditions of such production or use to the Secretariat. This reporting obligation is fulfilled by completing a DDT questionnaire that was first adopted by COP-3 to the Stockholm Convention. In 2025 the Conference of the Parties (COP-12) adopted an updated version of the questionnaire by decision SC-12/2.

Paragraph 4 of Part II of Annex B to the Convention stipulates the DDT reporting requirements, including the amount used, conditions of use, and its relevance to disease management strategies. Parties are also able to report other information relevant to the evaluation of the continued need for DDT for disease vector control.

The questionnaire is composed of four main sections:

• Section A: Production and Use of DDT
• Section B: DDT Alternatives (Insecticides, methods, and strategies)
• Section C: General Human and Environmental Safety Issues
• Section D: Systems Strengthening in Disease Vector Control

The next reporting deadline is 30 June 2026 for the two-year period 2024- 2025.

The Secretariat has made available the updated questionnaire for reporting on the production and use of DDT, along with other information relevant toevaluating the continued need of DDT in disease vector control. The questionnaire is available in English and may be completed in Word or PDF format.Parties are kindly invited to report on their DDT use or production for the period 2024-2025 by 30 June 2026.

The questionnaire is available for download in word and PDF format here below to facilitate national coordination during the completion of the questionnaire.