Section 510.207 - Prohibited vessel transactions related to North Korean registration and flagging(a) U.S. persons may not register a vessel in North Korea, obtain authorization for a vessel to fly the North Korean flag, or own, lease, operate, or insure any vessel flagged by North Korea.(b) The prohibitions in this section apply except to the extent provided by regulations, orders, directives, or licenses that may be issued pursuant to this part, and notwithstanding any contract entered into or any license or permit granted prior to the effective date.