Eff. 12/31/72; AMD, 1977 MAR p. 1192, Eff. 12/24/77; AMD, 1979 MAR p. 1223, Eff. 10/12/79; AMD, 1981 MAR p. 1196, Eff. 10/16/81; AMD, 1992 MAR p. 1242, Eff. 6/12/92; AMD, 1999 MAR p. 1225, Eff. 6/4/99; AMD & TRANS, to ARM 1.3.312, 2008 MAR p. 1593, Eff. 8/1/08.