Before revision: Depending on what the law that is related to a sector states, concession can either allow the authority to retain or keep actual ownership of the assets, turning over to the concessionaire and reverting the control and ownership back to an authority once the duration of their concession ended , or both the authority and concessionaire control and own the facilities .
After revision: Concession agreement may also state the role of an authority and concessionaire and conditions regarding control and ownership of the assets and facilities such as concession can either allow the authority to retain or keep actual ownership of the assets turning over to the concessionaire and reverting the control and ownership back to an authority once the duration of their concession ended , or both the authority and concessionaire control and own the facilities .