The national emergency related to Cuba, initially declared in 1996 due to the destruction of two U.S. civilian aircraft by the Cuban government, is being continued. This emergency, expanded in 2004 and modified in 2016 and 2018, addresses concerns over Cuba's potential use of excessive force and the impact on U.S. foreign policy and security. The U.S. government remains vigilant about preventing unauthorized U.S.-registered vessels from entering Cuban waters to avoid a possible mass migration from Cuba. This notice is set to be published in the Federal Register and sent to Congress.
Simple Explanation
The government is still worried about safety after some bad stuff happened with Cuba, like destroying planes, so they're keeping extra rules in place to make sure boats from the U.S. don't go into Cuba; this is to keep everyone safe and stop any big surprises.