For taxable periods ending before December 31, 2021:
N.H. Admin. Code § Rev 304.04
#2012, eff 5-5-82; ss by #2722, eff 5-23-84; ss by #4192, eff 12-23-86; ss by #5490, eff 10-19-92; ss by #6853, eff 9-23-98; ss by #8709, eff 8-25-06 (formerly Rev 304.05 )