Where necessary, deficient documents may also be amended at the request of a party by the competent department of the EPO. This will be the procedure for minor amendments, e.g. where it is necessary to insert details which were omitted in the request for grant, and the number of amendments involved is not excessively large, or where whole pages or paragraphs are to be deleted. The party concerned should submit a list summarising the amendments to be undertaken by the EPO. This procedure is also to be followed for minor amendments to drawings, e.g. for amending a reference number or deleting one or more whole figures (as regards the removal of references following an amendment to the description, see C-II, 4.8). In the case of complicated amendments to drawings, where it is not immediately clear how the changes are to be made, the party concerned, who as a rule is the applicant or proprietor, must submit replacement pages. A party may also make amendments himself at the EPO, for example when he attends to sign documents.