The Federal Aviation Administration is part of and is operated by the US Department of Transportation.
Transportation Department
Energy
EnergyThe Interior Department enforces some oil drilling laws on Federal lands. The Environmental Protection Agency would also have jurisdiction over some aspects of oil drilling on Federal lands.The Department of Energy
The Food and Drug Administration is the part of the Department of Health and Human Services that is involved in regulating food production in the US. That function is shared with the Department of Agriculture.
The Occupational Health and Safety Administration enforces work health and safety laws.
The agency that enforces minimum wages and maximum hours has different names in different jurisdictions. However, it is often called something like "Wage and Hour Administration" or "Employment Standards Administration," and is often located within a Department or Ministry of Labor.
Labor
EnergyThe Interior Department enforces some oil drilling laws on Federal lands. The Environmental Protection Agency would also have jurisdiction over some aspects of oil drilling on Federal lands.The Department of Energy
The Bureau of Alcohol, Tobacco and Firearms (ATF) has been responsible for administering and enforcing the FAAA
Ocupational Safety and Health Administration (OSHA)
Occupational safety and health division