Shipowners are constantly faced with ever-changing laws and guidelines they must abide by. If they don't adhere - or even are not aware of these environmental requirements and regulations - they may not only risk losing their upstanding place in the maritime industry, but could face stiff fines and possibly even jail time. Ever since the Exxon Valdez oil spill disaster in 1989, vessel owners and masters have since become wary of already-established and new guidelines (such as OPA '90) exerted by IMO and SOLAS for safe and clean waters. Everyone from captains on the largest cruise ships in the world - to the master of a small tugboat fall into this category. But, alas, there are always a few who think they are above the law or are just - in plain English - negligent in their decisions.