West Valley was abandoned for economic reasons & became a Superfund site. Almost all reprocessing in the world today is being phased out because of its poor economics, and only exists because of huge government subsidies. Here is an excellent paper by Princeton University's Dr. von Hippel on the...
The link above is clear enough as daveb has indicated, and it does not preclude reprocessing, as it has an "except" clause that only requires the reprocessing facility to comply with IAEA security requirements for weapons useable materials. In light of 911 attacks, this is not unreasonable...