The Lincolnshire Consortium of Grammar Schools was created to coordinate Testing arrangements across the county. Currently, 12 out of the 14 grammar schools, together with King Edward's VI Humanities College in Spilsby, which is a  Bilateral
The school takes children from across the full ability range but also has a special grammar school stream. bilateral school, belong to the Consortium and follow the same Testing arrangements.

Caistor Grammar School does not belong to the Consortium and administers its own tests. The Boston Grammar Schools Federation uses the same tests as the Consortium but has adopted a modified set of selection criteria.