The four organisations are the Thai Journalists Association, the Press Council of Thailand, the Thai Broadcast Journalists, and the News Broadcasting Council of Thailand.
The open letter called on the National Peace and Order Maintaining Council to urgently review all orders that are involved with the journalist duty of the media.
The organisations suggested that the NPOMC should have the National Broadcasting and Telecommunications Commission enforce existing laws to supervise news reports instead of using the restrictive orders.
The Nation