DS2's school SEN policy reflecting 'guidance' from their LA, goes
SA up to 1 hour LSA
SA+ from 1.5 to 4.5 hours LSA
AEN from 5 hours to 12.5 LSA
Statemented.
There would appear to be a secret level between SA+ and statementing.
btw I got this by googling and got a letter from the LA dated June 2013 from the LA to all heads/senco/chair of governors of all primary schools in the county, explaining SEN funding 2013-14.