Governor Carnahan's 1997 Safe Schools Initiative began requiring background checks for teacher certification in Missouri. In 1998, legislation was passed requiring checks for out-of-state applicants seeking certification. By 2000, regulations mandated fingerprint background checks for all licensure applicants. Additional rules in 2003 and 2005 expanded checks to substitute teachers, school employees, and bus drivers to enhance school safety. The highway patrol assisted with annual checks until 2003, when an online application process launched.