N.H. Admin. Code § Ed 604.01
#2055, eff 6-16-82; ss by #2714, eff 5-16-84; ss by #4487, eff 9-8-88; ss by #4851, eff 6-25-90; ss by #6048, eff 6-2-95; ss by #6366, eff 10-30-96; ss by #6823, eff 9-1-98; ss by #8194, eff 10-26-04; ss by #10295, eff 3-22-13