S. 3576, known as the “Creating Obstructions Necessary To Address Illegal and Nefarious Entry Rapidly Act” or “CONTAINER Act,” allows certain U.S. states that border Canada or Mexico to place temporary, movable structures on Federal land to help secure international borders....
Simple Explanation
The CONTAINER Act lets states next to Canada or Mexico put up temporary walls or fences on certain federal lands to help keep borders safe, but they must tell the government 45 days before doing so.