Rim of the Valley Corridor Preservation Act

This bill adjusts the boundaries of the Santa Monica Mountains National Recreation Area in California by formally adding the "Rim of the Valley Unit" to the existing protected area. It directly affects landowners and users within the newly defined boundary, which is specified using two maps: an existing 2001 map and a proposed 2023 map. The key mechanism is the boundary revision process, allowing minor future adjustments after notifying congressional committees and publishing in the Federal Register. Existing water and utility facilities within the added area may continue operating but must minimize environmental impact during maintenance or modifications.