N.H. Admin. Code § He-C 4002.20
#4871, eff 7-24-90; ss by #5203, eff 8-16-91; ss by #6558, INTERIM, eff 8-16-97, EXPIRED: 12-14-97
New. #6719, eff 3-25-98; ss by #7294, eff 5-26-00; ss by #9160, INTERIM, eff 5-26-08, EXPIRES: 11-22-08; ss by #9310, eff 11-23-08 (He-C 4002.22 )