What must happen before regulations established by national member federations can take effect?

For regulations established by national member federations to take effect, they must be approved in writing by FIBA. This requirement is essential because it ensures that all national regulations align with FIBA's overarching rules and standards, promoting consistency and fair play across the sport globally. The approval process helps maintain the integrity of basketball governance and facilitates effective communication and implementation of regulations among member federations.

While announcements and reviews by National Olympic Committees or trials might serve various purposes within the regulatory framework, they are not prerequisites for the regulations to be enacted. FIBA's endorsement is crucial as it serves to unify the sport under a regulated system that is recognized internationally.