Abstract: A system and method for dynamically provisioning control plane signaling capacity for each base site in a communication system. Each base site is configured to monitor at least one criteria, such as a control plane traffic throughput level, of at least one control channel. If the criteria indicate that that additional control plane signaling capacity is required, the base site assigns an available communication channel as an additional control channel to transmit control plane signaling and causes selected talk groups to move to the additional channel. If the criteria indicate that the control plane signaling capacity should be decreased, the base site selects a control channel to be de-assigned from the control plane and causes talk groups associated with the selected control channel to another available control channel.