It's called the reopener for unknown damage provision and its reopened some old wounds here in Alaska.

NPR: Valdez: The Damage Persists, 17 Years Later

Mr. MARK BOUDREAUX (Exxon Spokesman): To date no claim has been submitted and a reopener claim could be put forth only if it's been demonstrated based on science that the conditions of the settlement agreement have been met.

NPR: Valdez: The Damage Persists, 17 Years Later