DHS Waives Laws to Speed Border Wall Construction in California

The US Department of Homeland Security (DHS) will waive dozens of federal and state laws to accelerate the construction of new barriers and roads in the San Diego Sector of the California-Mexico border. The determination, made by Secretary of Homeland Security Kristi Noem, took effect on Sept. 23, 2025.

The project area extends from the Pacific Ocean east to Border Monument 231, where DHS plans to install new barriers, roads, cameras, sensors, and lighting to enhance detection and deterrence.

The San Diego Sector has long been identified as an area of high illegal entry. From FY21 through July 2025, US Border Patrol apprehended more than 922,000 migrants attempting to cross illegally and seized significant quantities of narcotics, including over 29,000 pounds of methamphetamine and more than 4,000 pounds of fentanyl.

“Since the President took office, DHS has delivered the most secure border in history. More can and must be done,” says Noem.

Legal Framework and Waivers

The move relies on section 102 of the US Illegal Immigration Reform and Immigrant Responsibility Act of 1996 (IIRIRA), as amended by subsequent laws including the Secure Fence Act of 2006. This provision grants the DHS Secretary authority to waive any legal requirement deemed necessary to expedite border infrastructure.

As a result, DHS has suspended compliance with major environmental and preservation laws in the project area, including: National Environmental Policy Act (NEPA), Endangered Species Act (ESA), Clean Water Act, National Historic Preservation Act, Migratory Bird Treaty Act, Clean Air Act, Wilderness Act, and Native American Graves Protection and Repatriation Act.

More than two dozen statutes have been waived, clearing the path for construction without environmental or cultural resource reviews.

Congressional and Executive Backing

The action aligns with President Biden’s Executive Order 14165 on border security, which directs DHS to deploy physical barriers to achieve “operational control” of the southern border, defined by Congress as the prevention of all unlawful entries of people, narcotics, and contraband.

It also coincides with major new funding measures under the One Big Beautiful Bill Act, which allocates over US$46 billion through FY2029 to Customs and Border Protection (CBP) for border barriers, roads, and detection technology. Additional provisions include:

• US$12 billion for CBP personnel and resources

• US$45 billion for Immigration and Customs Enforcement (ICE) to expand detention capacity

• US$6 billion for CBP inspection and surveillance technologies

• US$1 billion for state and local homeland security grants, including support for major events like the 2026 FIFA World Cup and 2028 Olympics

• A US$10 billion reimbursement fund available through FY34 to support state and local governments involved in border security actions.

Construction in the San Diego Sector will begin immediately, with DHS reserving the right to issue further waivers if deemed necessary. While the government underscores the urgency of strengthening border defenses, critics are expected to challenge the sweeping suspension of environmental protections and cultural resource safeguards.

The decision marks one of the most aggressive border security actions in recent years, setting the stage for intensified debate over the balance between national security and environmental stewardship at the US-Mexico border.