Yes, but my point was how do police enforce laws, based on what legal authority? Some people claim that law enforcement does not have the right to arrest them, because they're sovereign citizens or some garbage. I do not recall state police officers being mentioned in the US Constitution, right? So how do police officers have the authority to effect an arrest, take away your freedoms prior to a jury trial of your peers, and hold you in jail? The CDC, itself, doesn't have any enforcement mechanisms, but they most certainly do have the ability to pass federal mandates. Those federal mandates are then followed by federal organizations/agencies such as the FAA. The FAA regulates airlines and air travel. If the CDC requires masks to control a health pandemic, then they absolutely have the ability to tell the FAA to require masks on planes. US citizens do not have a constitutional right to board an airplane, therefore the FAA can mandate masks. Failure to follow FAA rules can result in you being asked to deplane/leave a flight. If you refuse, then you're trespassing, and law enforcement can now arrest you for trespassing. The FAA can also issue fines and fine you. They can then also add you to the no-fly list.
So, the CDC does have authority, they just don't have the direct ability to enforce their mandates.