When the Receiving Section notices that the information required under Rule 28(1)(c) (indication of the depositary institution and the accession number of the culture deposit) or the information and the document referred to in Rule 28(1)(d) (authorisation to refer to the deposit and the consent to it being made available) is not contained in or has not yet been submitted with the application, it should notify the applicant of this fact as this information can only be validly submitted within the time limits specified in Rule 28(2). In the case of missing information pursuant to Rule 28(1)(c), the deposit must be identified in the patent application as filed in such a way that the later submitted accession number can be traced back without ambiguity. This can normally be done by indicating the identification reference given by the depositor within the meaning of Rule 6.1(iv) of the Budapest Treaty (see G 2/93, OJ 5/1995, 275). The applicant is also informed when a deposit with a recognised depositary institution is referred to but no receipt from the depositary institution has been filed. Any further action is a matter for the Examining Division. See also C-II, 6, in particular 6.3(ii), as regards the Examining Division's treatment of applications relating to biological material.