Duration of the concession contractS
20.—(1) The duration of a concession contract must be limited.
(2) The contracting entity must estimate the duration on the basis of the works or services requested.
(3) For a concession contract lasting more than 5 years, the maximum duration of the concession contract must not exceed the time that a concessionaire could reasonably be expected to take to recoup the investment made in operating the works or services together with a return on invested capital, taking into account the investment required to achieve the specific contractual objectives.
(4) The investment taken into account for the purposes of the calculation of the time period referred to in paragraph (3) must include both initial investment and investment during the life of the concession contract.