47 C.F.R. § 76.983 – Discrimination.

(a) No Federal agency, state, or local franchising authority may prohibit a cable operator from offering reasonable discounts to senior citizens or to economically disadvantaged groups.
1. (1) Such discounts must be offered equally to all subscribers in the franchise area who qualify as members of these categories, or any reasonable subcategory thereof.
2. (2) For purposes of this section, members of economically disadvantaged groups are those individuals who receive federal, state or local welfare assistance.
(b) Nothing herein shall preclude any Federal agency, state, or local franchising authority from requiring and regulating the reception of cable service by hearing impaired individuals.