10.57.207    CORRESPONDENCE EXTENSION AND INSERVICE CREDITS

History: Sec. 20-2-121(1), 20-4-102, MCA; IMP, Sec. 20-4-102, 20-4-103, 20-4-106, 20-4-108, MCA; Eff. 4/21/75; ARM Pub. 11/25/77; AMD, 1978 MAR p. 1488, Eff. 10/27/78; AMD, 1981 MAR P. 843, Eff. 8/14/81; AMD, 1983 MAR p. 990, Eff. 7/29/83; AMD, 1985 MAR p. 112, Eff. 2/1/85; AMD, 1987 MAR p. 591, Eff. 5/15/87; REP, 1992 MAR p. 230, Eff. 3/1/92.