(1) Where the conditions specified in paragraphs (4) to (8) are satisfied, the Board may treat an appeal as made in time where an appeal is brought within a period of one year after the expiration of the notification period.
(2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(4) The Board must not treat the appeal as made in time unless the Board is satisfied that it is in the interests of justice.
(5) For the purposes of paragraph (4) it is not in the interests of justice to treat the appeal as made in time unless the Board are satisfied that—
(a) the special circumstances specified in paragraph (6) are relevant ...; or
(b) some other special circumstances exist which are wholly exceptional and relevant ...,
and as a result of those special circumstances, it was not practicable for the appeal to be brought within the notification period.
(6) For the purposes of paragraph (5)(a), the special circumstances are that—
(a) the appellant or a partner or dependant of the appellant has died or suffered serious illness;
(b) the appellant is not resident in the United Kingdom; or
(c) normal postal services were disrupted.
(7) In determining whether it is in the interests of justice to treat the appeal as made in time , regard shall be had to the principle that the greater the amount of time that has elapsed between the expiration of the notification period and the submission of the notice of appeal, the more compelling should be the special circumstances.
(8) In determining whether it is in the interests of justice to treat the appeal as made in time , no account shall be taken of the following—
(a) that the appellant or any person acting for him was unaware of or misunderstood the law applicable to his case (including ignorance or misunderstanding of the notification period); or
(b) that the Upper Tribunal or a court has taken a different view of the law from that previously understood and applied.
(9) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(10) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(11) As soon as practicable after the decision is made a copy of the decision shall be sent or given to every party to the proceedings.