Would a clean-up procedure be considered critical, and then, therefore, it would have to be validated. 1.23K viewsOctober 10, 2022DrugsPharmaceutical 0 Sam Smith11.38K October 1, 2020 0 Comments Spread the loveSpread the love 1 Answer ActiveVotedNewestOldest 0 Blogolu28.38K Posted October 1, 2020 0 Comments Spread the loveIt depends. You define where and when cleaning validation is required based upon sound scientific reasons. Spread the love Login