HB 1947 amends the Government Code to expand protections and liabilities related to critical infrastructure facilities. It includes semiconductor wafer manufacturing facilities in the definition of critical infrastructure and introduces penalties for actions causing disturbances within 15 miles of such facilities, including ground or subterranean vibration. The bill increases the maximum fine for corporations and associations adjudged guilty of offenses involving critical infrastructure to $1 billion. It also establishes liability for organizations compensating individuals for engaging in prohibited conduct near critical infrastructure facilities.