NOTE: INCB kindly requests that authorities submitting the Excel (XLSX) version of Form D please include a scan of a signed cover page to validate the submission. Please see Part IV: Other Considerations of the instructions below for further details.
For the list of precursors and chemicals frequently used in the illicit manufacture of narcotic drugs and psychotropic substances, please refer to the Red List.
Form D - Training materials
Presentations - Form D training, February 2026 (PDF)
