The document discusses the ASEAN Common Technical Document (ACTD), a common format for submitting technical dossiers to ASEAN regulatory authorities for pharmaceutical registration. ACTD aims to harmonize pharmaceutical regulations across ASEAN countries to facilitate trade without compromising safety and efficacy. It consists of four parts covering administrative data, quality documents, non-clinical documents, and clinical documents. ACTD allows dossiers to be used for registration across the entire ASEAN region rather than individual countries, expediting the regulatory review process.