Passed in 1920, this law aims to protect the American shipping sector — but it's also faced criticism over the years for slowing the delivery of goods, including critical aid during time of crisis. Here's what we know. What is the Jones Act? The Jones Act's official name is the Merchant Marine Act of 1920. Congress passed the law — sponsored by Sen. Wesley Jones of Washington state — in an effort to rebuild U.S. shipping after German U-boats de... [5049 chars]