EMP Control Centers were battle stations located in Yellow zone cities in Tiberium Wars and Kane's Wrath. They were designed to launch EMP attacks, shutting down structures and vehicles alike. They are easily distinguishable by their four cylindrical towers extending into the sky.
The EMP support power has an initial three minute recharge before a commander can use the EMP for the first time once captured.
Intelligence Database Description
These structures were constructed as the first lines of defence against Nod aggression. In theory, a volunteer crew would race to the EMP Control Center as the first wave of attackers is seen and fire the EMP immobilizing them, giving time for civilians to evacuate and any military forces in the area to quickly respond. In practice, the system never worked, as Nod became dormant and the volunteers eventually lost their fervor.
Today, these structures are still in operational shape, but are abandoned and will serve anyone willing to take control of them. This time the EMP will take down aircraft by disabling their engines.