(1) A port entry direction or a movement direction may be given to the master or pilot of -
(a) a ship owned, controlled, chartered or operated by designated persons,
(b) a ship owned, controlled, chartered or operated by persons connected with the DPRK,
(c) a ship registered in the DPRK,
(d) a ship flying the flag of the DPRK,
(e) a ship originating from the DPRK, or
(2) A port entry direction or a movement direction under paragraph (1) may be given by -
(a) the Secretary of State, or
(b) a harbour authority.
(3) The Secretary of State may direct a harbour authority to take such steps as are reasonably practicable to secure that a ship mentioned in paragraph (1) -
(a) proceeds to or enters a port specified in the direction,
(b) leaves a port specified in the direction,
(c) proceeds to a place specified in the direction, or
(d) remains where it is.
(4) A port entry direction may be given to the master or pilot of -
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