Regulations under the PCT

Rule 28
Defects Noted by the International Bureau

28.1       Note on Certain Defects

(a)  If, in the opinion of the International Bureau, the international application contains any of the defects referred to in Article 14(1)(a)(i), (ii) or (v), the International Bureau shall bring such defects to the attention of the receiving Office.

(b)  The receiving Office shall, unless it disagrees with the said opinion, proceed as provided in Article 14(1)(b) and Rule 26.