12.—(1) If in respect of any of the days specified in a provision of regulation 9, 10 or 11 one or two of the relevant reports is not published, that provision has effect as if references to the relevant reports were to such of the relevant reports as are actually published in respect of that day.
(2) If in respect of any of the days specified in a provision of regulation 9, 10 or 11 other than the notional delivery day, none of the relevant reports is published (“a non-publication day”), that provision has effect as if—
(a)references to a day which is a non-publication day falling before the notional delivery day were to the day falling next before that day on which at least one of the relevant reports is published; and
(b)references to a day which is a non-publication day falling after the notional delivery day were to the day falling next after that day on which at least one of the relevant reports is published.
(3) If the application of the rule in paragraph (2) would lead to the reports for a day being taken into account more than once, a reference to the day falling next before, or after, the non-publication day shall be read as a reference to the first day falling next before or after (as the case may be) the non-publication day which would not otherwise be taken into account for the purposes of this regulation.
(4) In cases where the date of completion of load or the date of the bill of lading is substituted for the notional delivery day under regulation 8, references in this regulation to the notional delivery day are to be read as references to the day substituted under that regulation.