An important part of implementation is federal negotiation of cooperative agreements with states, under which they take lead responsibility for cleanup, with later recovery of costs from responsible parties.

• 执行清理的一个重要部分是由联邦与各州之间谈判合作协定，据此协定，各州要为清理负主要责任，并由各州负责从责任方那里追索清理费用。