The National Sea Grant College Program is now accepting applications for the Knauss fellowship program. Graduate students with an interest in policy and governmental work related to coastal issues are eligible and encouraged to apply. 
The Dean John A. Knauss Marine Policy Fellowship offers outstanding graduate students the opportunity to serve a one-year paid fellowship in either a legislative or executive branch office in the nation’s capital. Students get the chance to work directly on issues related to their areas of study and research while also networking and making connections for future positions or research pertaining to the coastlines and water resources of the U.S. 
You can find more information about the fellowship at the link above, and by watching this terrific video featuring previous fellowship winners. Past participants have worked for and with a variety of offices and agencies, including work on the 2010 oil spill in the Gulf of Mexico, ocean acidification and the ecology of infectious diseases, and several other projects.