The EPO or a European ISA acted as ISA
The EPO will, however, only act as an IPEA if the international search was also carried out by the EPO or by the Austrian, Finnish, Spanish, Swedish or Turkish patent office or the Nordic Patent Institute or the Visegrad Patent Institute. Applicants considering their choice of ISA (PCT request form Box No. VII) are advised to bear this in mind (see also point 3.1.012).
Source: http://www.epo.org/applying/international/guide-for-applicants/html/e/ga_c4_1_4_3.html
Date retrieved: 17 May 2021