The SISR is filled out in the same way as for any international search, with the exception that publication details do not have to be provided since the main ISA has already provided the publication data and IPC classes.[GL/ISPE 15.96; ]
Examiners will not cite in the SISR a document already cited in the ISR unless they attach a different significance to it, e.g. as a Y document in combination with a newly cited document or where the main ISR has clearly failed to recognise the extent of the document's relevance.
Furthermore, it will be indicated in the SISR whether or not the main ISR was available and taken into account.
Source: http://www.epo.org/law-practice/legal-texts/html/guidelinespct/e/b_xii_6.htm
Date retrieved: 17 May 2021