Senator Bob Hall of Texas has introduced legislation for the next legislative session to protect the Texas electrical grid.
S.B. No. 83
A BILL TO BE ENTITLED
relating to the protection of energy critical instrastructure from electromagnetic, geomagnetic, terrorist, and cyber-attack threats.
Text of Texas EMP legislation bill: https://www.legis.state.tx.us/tlodocs/85R/billtext/html/SB00083I.htm