Rules 5.2 and 13ter PCT apply to the filing of sequence listings (see IV, 5 ("Applications relating to nucleotide and amino acid sequences")). The EPO as International Searching Authority (see E-IX, 3) makes use of the opportunity under Rule 13ter.1 PCT to invite the applicant where appropriate to furnish it with the prescribed sequence listing in electronic form WIPO Standard ST. 25, paragraph 39 ff, applies (see Art. 4 of the Decision of the President of the EPO dated 2 October 1998 together with the accompanying Notice from the EPO (point III), Supplement No. 2 to OJ 11/1998).

If a sequence listing is filed subsequently on entry of a Euro-PCT application into the European phase, Rule 111(3) will apply (see point IV of the above mentioned Notice).