Registering content with ISAN is reserved to audiovisual industry professionals. Applicants must apply as ISAN registrant in the ISAN registration agency of their choice. Users registering audiovisual works with ISAN are the producer of said works or an authorized proxy of the producer (e.g. sales agent and/or distributor) or other appropriate entity or individual (trusted third party). ISAN registrants for versions can be any professional who need to identify a particular version of a work for a particular purpose such as content distribution. Each registrant applicant will be asked to apply for ISAN only for those audiovisual works for which he/she guarantees the accuracy of all descriptive information.
The entity or person to whom an ISAN is given should have the capacity to permanently attach or link that ISAN to the specific audiovisual content that it identifies (i.e. producer, distributor, broadcaster, digital platform…).