A tariff or tariff schedule is a special type of contract between a regulatory agency, such as a public utilities commission or a government such as a municipality, and a business, to provide a product or service to the public, often in exchange for being granted an exclusive franchise to provide the tariffed product or service within an exclusive area.
Tariffs have generally been required for providers of public utilities such as water, natural gas, electricity, telephone, and cable television.
They have also generally been required for such businesses as moving companies, taxicabs, and tow truck operators.
This proposal would then be submitted to ("filed with") a regulatory agency such as a public utilities commission, or, in some cases, a municipality such as a county, city, town, or township, for approval.
The proposal is a type of contact between the regulatory agency and the business providing the product of services.