negotiate the cost of any oversight activities carried out by such agencies for each agreement under this section, provided that the total cost for that oversight shall not exceed 4 percent of the total project costs. (h) Conveyance of title to Navajo water development projects The Secretary shall convey title to those Navajo water development projects described as water supply and water distribution systems in the agreement and authorized in this section to the Navajo Nation when construction of each project is complete and the project is operating and, if applicable, delivering potable water. (1) Limitation of liability Effective on the date of the conveyance authorized by this subsection, the United States shall not be held liable by any court for damages arising out of any act, omission, or occurrence relating to the facilities conveyed under this subsection, other than damages caused by any intentional act or act of negligence committed by the United States, or by employees or agents of the United States, prior to the date of conveyance. (2) OM&R obligation of the United States after conveyance The United States shall have no obligation to pay for the operation, maintenance, or replacement costs of any Navajo water development project beginning on the date on which— (A) title to the project is conveyed to the Navajo Nation