... 2. If, however, a State does not know of the occurrence of the damage or has not been
able to identify the launching State which is liable, it may present a claim within one
year following the date on which it learned of the aforementioned facts; however, this
period shall in no event exceed one year following the date on which the State could
reasonably be expected to have learned of the facts through the exercise of duediligence. ...
... 3. The Commission shall give its decision or award as promptly as possible and no later
than one year from the date of its establishment, unless an extension of this period is
found necessary by the Commission. ...