N.H. Admin. Code § Env-A 622.04
#1710, eff 2-19-81; ss by #2332, eff 4-29-83; ss by 2938, eff 12-27-84; ss by #5033, eff 12-27-90; ss by #6057-B, eff 6-30-95; EXPIRED: 6-30-03
New. #8129, eff 7-28-04 (formerly Env-A 206.04); amd by #9791, eff 10-1-10; ss by #10175, eff 9-1-12