The NO FLOCK Act would withhold 10 percent of federal highway funding from states that do not enact laws restricting the use of automated license plate readers. The bill would allow these cameras only for specific purposes: enforcing toll systems and identifying stolen vehicles, missing or endangered persons, vehicles registered to felony suspects, or vehicles involved in felony investigations. States would have until the third fiscal year after the law's enactment to pass such restrictions, with penalties beginning in the fourth fiscal year. The bill aims to limit surveillance capabilities by restricting how law enforcement and other entities can use automated scanning technology. The legislation affects all states that receive federal surface transportation funding under existing law.