Almost all remediation transactions and measures involve the attribution of responsibility for known and unknown environmental conditions. The negotiation of these allocation issues can be intense and lead to very complex outcomes. The access agreement should not be contrary to the allocations set out in the relevant commercial documents, just as the level of attribution in each insurance policy invoked by the parties for the final security liability should be reflected and supported by it. The party granting access will also want compensation to cover the damage and include a release and reclamation regime. Further reflection on the allocation of costs may include: (2) the commitments of the parties (notification, removal of barriers to access, security, facilitation) 3.