Child Trends and NASBE (2021) divided states into three 2019 categories
The Child Trends and NASBE analysis (2021) divided states into three categories: (1) states that mandated behavioral threat assessment in K–12 schools through legislation or specific state policy in 2019; (2) states that encouraged the implementation of behavioral threat assessment in K–12 schools or addressed it via non-codified policy in 2019; and (3) states that made no mention of behavioral threat assessment in 2019.