This ordinance amends Section 21 of Council Bill 120949 to set the effective date to June 30, 2025. The change aligns CB 120949 with other land use bills implementing state-mandated updates to Seattle’s municipal code. By synchronizing the effective dates, the Seattle Department of Construction and Inspections gains additional time to prepare staff, update training materials, and conduct coordinated outreach. The amendment specifies that the ordinance takes effect pursuant to Seattle Municipal Code Sections 1.04.020 and 1.04.070 or on June 30, 2025, whichever is later. This update ensures uniform implementation of multiple land use regulations and supports a smoother transition for permit processing and code enforcement under the new legislation.