A licence—
(a) comes into force on the day specified in the licence; and
(b) remains in force—
(i) until the date (the expiry date ) specified in the licence, which must not be later than 3 years after the day on which the licence came into force; or
(ii) if the licence is cancelled or otherwise ceases to be in force before the expiry date, until the licence is cancelled or otherwise ceases to be in force.