14 CFR 382.33: May carriers impose other restrictions on passengers with a disability that they do not impose on other passengers?

(a) As a carrier, you must not subject passengers with a disability to restrictions that do not apply to other passengers, except as otherwise permitted in this part (e.g., advance notice requirements for certain services permitted by § 382.27).

(b) Restrictions you must not impose on passengers with a disability include, but are not limited to, the following:

(1) Restricting passengers” movement within the terminal;

(2) Requiring passengers to remain in a holding area or other location in order to receive transportation, services, or accommodations;

(3) Making passengers sit on blankets on the aircraft;

(4) Making passengers wear badges or other special identification (e.g., similar to badges worn by unaccompanied minors); or

(5) Otherwise mandating separate treatment for passengers with a disability, unless permitted or required by this part or other applicable Federal requirements.