External Instruction IE-B.3.2.1-MB-02, version 4, entitled 'Registering, re-registering, and modifying and cancelling the health registration of biological products for human use', in application of the guidelines laid down in Resolution ARCSA-DE-2024-049-DASP, issuing 'Substitute Technical Health Regulations on the health registration, control and surveillance of biological products for human use', published in Official Journal No. 726 of 21 January 2025.The Republic of Ecuador hereby notifies Resolution ARCSA-DE-2026-002-DASP through which the National Agency for Health Surveillance, Regulation and Control (ARCSA, Doctor Leopoldo Izquieta Pérez) issued version 4 of External Instruction IE-B.3.2.1-MB-02: Registering, re-registering, and 1 This information can be provided by including a website address, a PDF attachment, or other information on where the text of the final/modified measure and/or interpretative guidance can be obtained.G/TBT/N/ECU/547/Add.4- 2 - modifying and cancelling the health registration of biological products for human use, which entered into force on 23 January 2026, superseding Resolution ARCSA-DE-2025-021-DASP.Contact details of agency or authority designated to handle comments regarding the notification:Agency:Agencia Nacional de Regulación, Control y Vigilancia Sanitaria - ARCSA (National Agency for Health Surveillance, Regulation and Control), Doctor Leopoldo Izquieta PérezMinisterio de Producción, Comercio Exterior, Inversiones y Pesca, MPCEIP…