In the US, these kinds of laws would be at the state level.
Penalties for Practicing Without a License
State laws vary, but practicing without a valid, current license may be punishable by:
- Community service
- Jail or prison time
- Permanent loss of the license (if the violation was temporary)
As with all criminal convictions, the severity of the punishment depends on the circumstances of the violation, including the convicted person's criminal history and the damage caused by the offense. For example, a woman who falsified a nurse's license to get a job as a nurse was given a year's probation, fined, ordered to repay her employer, and directed not to apply for or take any jobs involving nursing or caregiving.