Relating to the denial of certain applications for a permit or other authorization under the Texas Clean Air Act on the basis of proximity to a semiconductor wafer manufacturing facility.

HB 1946 prohibits the Texas Commission on Environmental Quality from approving new permit applications for cement production plants (including kilns) that would be located within 10 miles of an existing semiconductor wafer manufacturing facility. This applies specifically to permits requiring "new source review" under the Texas Clean Air Act. The bill directly affects cement manufacturers seeking to build new facilities near semiconductor plants, blocking approvals based solely on proximity. The law takes effect September 1, 2025.