Where does it say that in the MoU? This is #5:
"Article 5 | Immediately upon signing this MOU, Iran will make its best effort to ensure the safe passage of commercial vessels through the Strait of Hormuz from the Persian Gulf to the Arabian Sea and vice versa, free of charge, for only 60 days. Commercial vessel passage will begin immediately and will be implemented within 30 days, considering the need to remove technical and military obstacles and clear mines by Iran. Iran will engage in dialogue with Oman while consulting with other Persian Gulf littoral states, in accordance with applicable international law and the sovereign rights of the Strait of Hormuz littoral states, to define future management and maritime services of the Strait of Hormuz."