A system and method for are provided for common distribution and rendering of communications capability for emergency alert services. A zone headend device, for a local zone, receives a local emergency alert service (EAS) message that is intended for a particular geographic locality. The zone headend device processes the local EAS message for delivery over a television conditional access system and sends the local EAS message to a regional headend device for a region of multiple zones including the local zone. The regional headend device receives the local EAS message and another local EAS message from another zone headend device. The regional headend device processes the local EAS message and the other local EAS message for in-band delivery with regional programming for broadcast quadrature amplitude modulation (QAM) and over-the-top streaming.