Except as provided in subsection (b), an individual who operates an unmanned aircraft and knowingly or recklessly interferes with a wildfire suppression, or law enforcement or emergency response efforts 1 related to a wildfire suppression, shall be fined under this title, imprisoned for not more than 2 years, or both.

This section does not apply to the operation of an unmanned aircraft conducted by a unit or agency of the United States Government or of a State, tribal, or local government (including any individual conducting such operation pursuant to a contract or other agreement entered into with the unit or agency) for the purpose of protecting the public safety and welfare, including firefighting, law enforcement, or emergency response.