Ariz. Rev. Stat. § 28-7382
G. In an action for just compensation based on a claim of expanded use for installation of a telecommunication facility, all of the following apply:
K. If excavation is required to install fiber optic cable or other underground telecommunication facilities within an existing easement or other property right that is owned, held or used by the department for transportation purposes, a provider with permission from the department to install privately owned telecommunication facilities shall provide written notice to the property owner of the expanded use for installation of the telecommunication facility before excavation. The provider shall send the notice by first class mail to the last known address of the property owner. A notice sent to the property owner entitled to notice under this subsection must include all of the following:
L. The notice prescribed in subsection K of this section is not required before the provider may use an easement or other property right that includes an authorization for excavation for the purposes of installing a telecommunication facility. Failure to provide the notice prescribed in subsection K of this section: