Legal Definitions - sea pass

A sea pass, also known as a sea letter, is a document that was historically issued during times of war by port authorities to neutral vessels. This document certifies the vessel's nationality, specifies the nature and destination of its cargo, and allows the vessel to sail under the neutral flag of its owner.

For example, if a neutral vessel was transporting goods during a war, it would need a sea pass to avoid being seized by either side. The sea pass would allow the vessel to sail safely and continue its trade without interference.

The use of sea passes was discontinued by proclamation of President James Madison in 1806. However, the term "sea pass" is still used today to refer to documents that allow passengers on a cruise ship to board and disembark at various ports of call.

Overall, a sea pass is an important historical document that allowed neutral vessels to trade safely during times of war.