The UN’s new resolution passed on March 2 took aim at North Korean shipping, with numerous clauses intended to counter the DPRK’s aptitude at using the disorganized and sprawling nature of the maritime industry to its favor.

The 2016 document mentions the word “vessel” 20 times, attempts to close loopholes that allow North Korean ships to sail with flags from other countries, and blocks foreign companies from providing crews, charter services and insurance to the North Korean fleet.

For the first time the resolution also singles out 31 ships as owned, operated or controlled by the previously designated Ocean Maritime