An applicant who wishes to claim priority must file a declaration of priority giving particulars of the previous filing, as specified in Rule 52(1), together with a certified copy of the previous application and, if necessary for the assessment of patentability, a translation of it into one of the EPO official languages (see A‑III, 6.7 and A‑III, 6.8).[Art. 88(1); Rule 52(1); Rule 53(1); Rule 53(3); ]