From the SPARC website:
Open educational resources (OER) has increasingly become a go-to strategy for legislators seeking to make college education more affordable and effective. Nearly half of all U.S. states have considered OER legislation in past years, and the trend is likely to continue. Given the increasing activity at the state level, SPARC is expanding the support we provide to our members in this arena.
Read more here:
Source: OER State Policy Tracker – SPARC