49 CFR Part 37 - Transportation for Individuals With Disabilities; Reasonable Modification of Policies and Practices

12. Personal Care Attendant (PCA).

While PCAs may travel with a passenger with a disability, transportation agencies are not required to provide a personal care attendant or personal care attendant services to meet the needs of passengers with disabilities on paratransit or fixed route trips. For example, a passenger's request for a transportation entity's driver to remain with the passenger who, due to his or her disability, cannot be left alone without an attendant upon reaching his or her destination may be denied. It would be a fundamental alteration of the driver's function to provide PCA services of this kind.