With an increase in fishing, energy extraction, and shipping activity, U.S. ocean and coastal areas are under increasing pressures from even more intensive use and development. This Nutshell, now in its 5th Edition, provides short summaries of state, national, and international law and policy relevant to practitioners and academics interested in the field of ocean and coastal law. The most recent edition, updating legal developments from previous editions, also offers new material on renewable energy, current beach access controversies, the Deepwater Horizon oil spill litigation, coastline adaptation to sea-level rise, climate change, marine litter, international law of the sea negotiations, and policy changes under President Trump's administration.