Source. PL 108:7. 1937, 202:3, 6. 1939, 8:5. 1941, 107:2; 125:1. RL 126:3, 6. RSA 161:4. 1965, 352:11. 1970, 34:13. 1977, 340:4. 1979, 226:1; 464:1. 1981, 174:1. 1983, 242:1; 291:1, II. 1986, 12:4. 1988, 289:2. 1991, 127:1. 1993, 151:1. 1994, 403:4. 1995, 294:1; 310:11. 2006, 70:6. 2010, 136:2, eff. Aug. 13, 2010. 2018, 335:4, III, eff. June 25, 2018. 2019, 346:19, eff. July 1, 2019.