Virginia seems to have been the first; www.nhtsa.gov/links/StateDocs/FY15/FY15HSPs/VA_FY15HSP.pdf
S.685 https://www.congress.gov/search?q={"source":"legislation","search":"S.685"}
For those having trouble finding SB 685
S.685 https://www.congress.gov/search?q={"source":"legislation","search":"S.685"}
For those having trouble finding SB 685