The requirement that the basis for amendments be indicated is met if, on consulting those parts of the application indicated, it is not necessary to look further in order to assess the amendment's compliance with Art. 123(2). Non-specific indications such as "see the description as filed" or "see the claims as filed" or "see the examples as filed" are generally not considered sufficient. This requirement also applies in cases where the applicant requests the examining division to amend his application (see H‑III, 2.4).
Where the application was not filed in an official language of the EPO, in the absence of evidence to the contrary, for the purpose of assessing compliance with Art. 123(2) the EPO assumes that any translation of the application as filed is accurate. Consequently, in order to comply with Rule 137(4) it is sufficient to indicate the basis of an amendment in the translation of the application as filed.