Article 44 sets the general rule: Chapter V conditions apply so the level of GDPR protection is not undermined when personal data moves to a third country or international organisation. The first scoping step is therefore factual, not contractual: identify each destination, importer, onward transfer, processing purpose, data category, and recipient role.
The GDPR does not define a transfer. EDPB Guidelines 05/2021, which are regulatory guidance rather than legislation, use three cumulative criteria: the exporter is subject to the GDPR for the processing; it transmits or otherwise makes the data available to a different controller, joint controller, or processor; and that importer is in a third country or is an international organisation. Chapter V can therefore apply even when the importer is itself subject to the GDPR. If there is no separate importer, Chapter V may not apply, but the controller or processor still has to meet the GDPR's other requirements, including security.
Once the transfer is mapped, select the legal route in order. Check for an Article 45 adequacy decision first. If there is no applicable adequacy decision, test Article 46 safeguards such as Commission SCCs, binding corporate rules, approved codes of conduct, or approved certification mechanisms with binding commitments. Treat Article 49 derogations as a separate fallback only when neither Article 45 nor Article 46 supports the transfer.
Article 49 covers specific situations, including explicit consent after the person is informed of transfer risks, certain contracts or pre-contract steps, important public-interest reasons, legal claims, vital interests where consent cannot be given, and transfers from public registers under the stated conditions. Its final compelling-legitimate-interests route is available only when Article 45 and Article 46 cannot be used and none of the other Article 49(1) derogations applies. The transfer must be non-repetitive, concern only a limited number of people, be necessary for compelling interests that are not overridden by their rights, and be supported by an assessment, suitable safeguards, supervisory-authority notice, and data-subject information. Public authorities cannot use that final route when exercising public powers. EDPB derogation guidance says these exceptions must be interpreted restrictively.