Are words such as wheelchair bound, handicapped or special needs acceptable to use?

False,
Words such as wheelchair-bound, handicapped or special needs are not acceptable to use, and they are not recommended. It is important that you address people by their person, not by their disabilities or limitations.

Instead of using the word “wheelchair-bound”, you can say “persons who use a wheelchair.”
Instead of handicapped, you can simply say “person with a disability.” These terms are recommended by the NDA Guidelines on Consultation.

Do not use terms such as mentally handicapped, deaf, mad, suffers from, blind, cripple, spastic, disabled, or victim.

In summary, do not place your emphasis on a person’s disability first; put an emphasis on the individual first.