28 C.F.R. § 36.203 – Integrated settings.

(a) General. A public accommodation shall afford goods, services, facilities, privileges, advantages, and accommodations to an individual with a disability in the most integrated setting appropriate to the needs of the individual.
(b) Opportunity to participate. Notwithstanding the existence of separate or different programs or activities provided in accordance with this subpart, a public accommodation shall not deny an individual with a disability an opportunity to participate in such programs or activities that are not separate or different.
(c) Accommodations and services.
1. (1) Nothing in this part shall be construed to require an individual with a disability to accept an accommodation, aid, service, opportunity, or benefit available under this part that such individual chooses not to accept.
2. (2) Nothing in the Act or this part authorizes the representative or guardian of an individual with a disability to decline food, water, medical treatment, or medical services for that individual.