Recital 92
Recital 92 of the GDPR, as in force since 25 May 2018. Its key is gdpr-recitals:rec-92.
There are circumstances under which it may be reasonable and economical for the subject of a data protection impact assessment to be broader than a single project, for example where public authorities or bodies intend to establish a common application or processing platform or where several controllers plan to introduce a common application or processing environment across an industry sector or segment or for a widely used horizontal activity.