Final answer:
When establishing command over the radio, it is important to announce the command control center names, command structure, local authority names, and emergency response plan.
Step-by-step explanation:
When establishing command over the radio, the following should be announced:
- Command control center names: The names of the command control centers responsible for coordinating the response to the emergency.
- Command structure: The hierarchy and chain of command within the emergency response system.
- Local authority names: The names of the local authorities in charge of managing the emergency situation.
- Emergency response plan: An overview of the emergency response plan, including key objectives and actions.