173Activities in certain locations not licensable
(1)An activity is not a licensable activity if it is carried on—
(a)aboard an aircraft, hovercraft or railway vehicle engaged on a journey,
(b)aboard a vessel engaged on an international journey,
(c)at an approved wharf at a designated port or hoverport,
(d)at an examination station at a designated airport,
(e)at a royal palace,
(f)at premises which, at the time when the activity is carried on, are permanently or temporarily occupied for the purposes of the armed forces of the Crown,
(g)at premises in respect of which a certificate issued under section 174 (exemption for national security) has effect, or
(h)at such other place as may be prescribed.
(2)For the purposes of subsection (1) the period during which an aircraft, hovercraft, railway vehicle or vessel is engaged on a journey includes—
(a)any period ending with its departure when preparations are being made for the journey, and
(b)any period after its arrival at its destination when it continues to be occupied by those (or any of those) who made the journey (or any part of it).