The UAE has eased a ban on the shipping of goods between it and Qatar, enforced under a political and economic boycott of Doha, according to port circular. An Abu Dhabi Ports circular cancelled previous directives that banned cargoes of Qatar origin from UAE waters and ports, and those of UAE origin from Qatar.
Specifically on June 2017, the Saudi Arabia Port Authority confirmed that no vessel will be allowed coming from or going to Qatar, regardless of the vessels’ flag or owners nationality....
https://safety4sea.com/uae-partly-mitigates-qatar-shipping-ban/