While it is not possible to completely guarantee anyones safety on an airplane, the name of the regulatory agency which oversees aircraft operation is the Federal Aviation Administration (FAA) and the regulatory agency which oversees transportation safety is the National Transportation Safety Board (NTSB).
In the US, it would have to be the Occupational Health and Safety Administration of OSHA.
WISHA stands for Washington Industrial Safety and Health Act, which oversees workplace safety and health in Washington State. See link below.
DEFRA in the UK, oversees Environmental, Food and Agricultural issues.
The Department of Health- who licenses and oversees hospitals. Other agencies, such as the Food & Drug Administration, may oversee drug safety.
The Federal Motor Carrier Safety Administration, a division of the Department of Transportation, oversees commercial shipping and transportation on the highways of the US. This includes buses and trucks.
The homophone for oversees is overseas
The Occupational Safety and Health Administration, or OSHA, oversees working conditions in America and makes sure they meet the requirements for safety. Their role is to protect the health and safety of workers.
There are no perfect rhymes for the word oversees.
The Judiciary oversees the courts.
Food and Drug Administration
Because unsafe cosmetics have killed people. The product that really got safety testing going was a permanent mascara called Lash-Lure. It was made out of fabric dye. If it got in your eye during the Lash-Lure service it would dissolve - seriously, DISSOLVE - the eye. This caused serious infections and several people died.