Particularly Sensitive Sea Areas

Particularly Sensitive Sea Areas (PSSA) is a marine environment protecting measure.-Interpret the scope of PSSA and the implementation of such an environment protecting measure-Clarify the roles of both international traffic and coastal states in an elaborated manner– What are the diffuctlies of compliance with PSSA regulations ?– What are the difficulties of monitoring and policing its regulations?ALL references should be electronic and can be easily accessedplease don’t reference books or articles I can’t access, like the ones need subscriptions or need to buy.