<P> On September 12, 2017, the United States Department of Homeland Security issued a notice that Acting Secretary of Homeland Security Elaine Duke would be waiving "certain laws, regulations and other legal requirements" to begin construction of the new wall near Calexico, California . The waiver allows the Department of Homeland Security to bypass the National Environmental Policy Act, the Endangered Species Act, the Clean Water Act, the Clean Air Act, the National Historic Preservation Act, the Migratory Bird Treaty Act, the Migratory Bird Conservation Act, the Archaeological Resources Protection Act, the Safe Drinking Water Act, the Noise Control Act, the Solid Waste Disposal Act, the Antiquities Act, the Federal Land Policy and Management Act, the Administrative Procedure Act, the Native American Graves Protection and Repatriation Act, and the American Indian Religious Freedom Act . </P> <P> In September 2017, the U.S. government announced the start of construction of eight prototype barriers made from concrete and other materials . With the exception of the small samples, no further wall construction has started beyond what was already planned during the Obama administration . </P> <P> The barrier has been criticized for being easy to get around . Some methods include digging under it (sometimes using complex tunnel systems), climbing the fence (using wire cutters to remove barbed - wire) or locating and digging holes in vulnerable sections of the wall . Many Latin - Americans have also traveled by boat through the Gulf of Mexico or the Pacific Coast . </P> <P> Tribal lands of three indigenous nations would be divided by the proposed border fence . </P>

Where does the border wall start and end