Declares that certain projects that add to or change existing personal wireless service facilities are exempt from two federal reviews. These collocation or modification projects are not “major Federal actions” under the National Environmental Policy Act (NEPA) and not “undertakings” under the National Historic Preservation Act (NHPA).

The change speeds upgrades like adding antennas or equipment on existing towers or buildings when a Federal authorization is involved, by removing NEPA environmental assessments/impact statements and NHPA Section 106 historic‑preservation reviews. The section also defines key terms, including “covered project,” “eligible personal wireless service facility,” “Federal authorization,” “Indian Tribe,” “personal wireless services,” and “State.”