This information is described in ARS §28-101.
"Taxi" means a motor vehicle that has a seating capacity not exceeding fifteen passengers, including the driver, that provides passenger services and that:
(a) Does not primarily operate on a regular route or between specified places.
(b) Offers local transportation for a fare determined on the basis of the distance traveled or prearranged ground transportation service as defined in section 28-141 for a predetermined fare.
"Livery vehicle" means a motor vehicle that:
(a) Has a seating capacity not exceeding fifteen passengers including the driver.
(b) Provides passenger services for a fare determined by a flat rate or flat hourly rate between geographic zones or within a geographic area.
(c) Is available for hire on an exclusive or shared ride basis.
(d) May do any of the following:
(i) Operate on a regular route or between specified places.
(ii) Offer prearranged ground transportation service as defined in section 28-141.
(iii) Offer on demand ground transportation service pursuant to a contract with a public airport, licensed business entity or organization.
"Limousine" means a motor vehicle providing prearranged ground transportation service for an individual passenger, or a group of passengers, that is arranged in advance or is operated on a regular route or between specified points and includes ground transportation under a contract or agreement for services that includes a fixed rate or time and is provided in a motor vehicle with a seating capacity not exceeding fifteen passengers including the driver.
" Transportation network company" means an entity that has been issued a permit pursuant to this article, that operates in this state, that uses a digital network or software application to connect passengers to transportation network services provided by transportation network company drivers and that may but is not deemed to own, operate or control a personal motor vehicle of a transportation network company driver. Transportation network company does not include the following:
(a) This state or a county, city, town or political subdivision of this state and any related entity, a nonprofit agency or any other public body that coordinates, operates, promotes or sponsors public transportation, carpool or vanpool services.
(b) A program that is in place to meet federal air quality standards pursuant to section 49-404.
(c) Any individual, company or activity that meets the requirements of a rental car agent or rental company as defined in section 20-331 if all of the following apply:
(i) Transportation is provided to another person or is arranged by the rental company but provided by another person.
(ii) The route is predetermined.
(iii) Any money exchanged between the provider of the transportation and the recipient does not exceed the cost of providing the transportation.