No. There is no provision in the JSE Recruitment Policy for standing approval of external advertising of specialist roles.
In rare circumstances, hiring managers may seek approval for immediate external advertising (in parallel with advertising on the JSE platform), when specialist skills are required (see clause 24).
A Secretary may pre-approve (before it is advertised) a specific role for external advertising if it is anticipated that no applications will be received when the role is advertised on the JSE. (see clause 20)