Tennessee HB 879, also introduced in the State Senate as SB 818, attempts to stymie the oversaturation of out-of-state rideshare drivers, which has negatively impacted Tennessee drivers. While drivers in bordering states are allowed to accept rides in Tennessee, Tennessee drivers are not eligible to do the same, meaning they must contend with out-of-state competition while not being able to benefit from crossing state lines themselves. The bill would require rideshare drivers to have a “transportation network license” to accept rides within the state. In order to obtain that license, registrants would need a Tennessee state driver’s license.

I wonder if laws prohibiting drivers from other states from offering service in neighboring states could be challenged on Dormant Commerce Clause grounds.

https://en.wikipedia.org/wiki/Dormant_Commerce_Clause

The Dormant Commerce Clause, or Negative Commerce Clause, in American constitutional law, is a legal doctrine that courts in the United States have inferred from the Commerce Clause in Article I of the US Constitution.[1] The primary focus of the doctrine is barring state protectionism. The Dormant Commerce Clause is used to prohibit state legislation that discriminates against, or unduly burdens, interstate or international commerce. Courts first determine whether a state regulation discriminates on its face against interstate commerce or whether it has the purpose or effect of discriminating against interstate commerce. If the statute is discriminatory, the state has the burden to justify both the local benefits flowing from the statute and to show the state has no other means of advancing the legitimate local purpose.