The quotas for Level 2 and Level 3 are determined for journals and series in each panel on the basis of the size of the publication channels, in other words their annual publication volume (see 4.5.1).
The aggregate publication volume of the journal/series titles rated as Levels 2 and 3 can cover at most 25% of the corresponding publication volume of the journal/series titles in the panel’s list meeting Level 1 criteria. The aggregate publication volume of Level 3 must not exceed 10%.
The book publisher list is common to all panels, a total of about 100 publishers can be classified as Level 2, and a total of about 10 publishers can be classified as level 3. The panels make suggestions for Level 2 and Level 3 book publishers, and the chairs of all panels confirm the classification by consensus.