(1) Where a person knows any of the required information more than seven days before the date of their intended departure, the person must notify such of the required information as the person holds—
(a) not less than seven days before that date (“the seven day notification requirement”), or
(b) if the person has a reasonable excuse for not complying with the seven day notification requirement, as soon as practicable but in any event not less than twenty-four hours before that date.
(2) Where the person has notified the police in accordance with paragraph (1) but—
(a) the information so notified does not contain all the required information, or
(b) at any time prior to their intended departure, the information so notified becomes inaccurate,
the person must notify to the police the remaining required information or the changes to the required information as the case may be in accordance with the rule in paragraph (4).
(3) Where a person does not know any of the required information more than seven days before the date of their intended departure, the person must notify the required information to the police in accordance with the rule in paragraph (4).
(4) The rule is that the person must make the notification—
(a) not less than twenty-four hours before the date of their intended departure (“the twenty-four hour notification requirement”), or
(b) if the person has a reasonable excuse for not complying with the twenty-four hour notification requirement, as soon as practicable but in any event before the person’s departure from the United Kingdom.