In 2018, Deaf Action wrote to Air NZ asking for their videos to add NZSL interpreters.
The standard response of space etc arose.
In 2019, Deaf Action filed a petition with Civil Aviation Authority to have a Safety Briefing Rule changed to accommodate NZSL in the safety videos.
Again the standard stock response of space etc arose.
Yet, airlines like Thai Airways are able to do this.
The petition response is currently being reviewed by the Ombudsman Office.