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Starting March 16, 2020, all transactions for application, processing, receiving, and releasing of Certificate for Non-Controlled Chemicals and Certificate of Exemption for Products or Chemical Mixtures that Contained Controlled Substances will be processed online through the use of Online Application for Certification and Exemption Information System (OACEIS). The system is accessible via a web browser, preferably Google Chrome, through this link: oaceis.ddb.gov.ph. Please be advised that payment for the transaction made will still be settled at the Cashier Section of the DDB Office.