SAN DIEGO — The Trump administration said Tuesday that it is waiving federal contracting laws to speed construction of a wall at the U.S.-Mexico border, moving the president closer to fulfilling a signature campaign promise in an election year but sparking criticism about potential for fraud, waste and abuse.

The Department of Homeland Security said waiving procurement regulations will allow 177 miles of wall to be built more quickly in California, Arizona, New Mexico and Texas. The 10 waived laws include a requirement for open competition and giving losing bidders a chance to protest decisions.

The acting Homeland Security secretary, Chad Wolf, is exercising authority under a 2005 law that gives him sweeping powers to waive laws for building border barriers.

“We hope that will accelerate some of the construction that’s going along the southwest border,” Wolf told Fox News Channel’s “Fox & Friends.”

Secretaries under President Donald Trump have issued 16 waivers, and President George W. Bush issued five, but Tuesday’s announcement marks the first time that waivers have applied to federal procurement rules. Previously they were used to waive environmental impact reviews.

The Trump administration said the waivers will allow at least 94 miles of wall to be built this year, bringing the Republican leader closer to his goal of about 450 miles since he took office and made it one of his top domestic priorities. It said the other 83 miles covered by the waivers may get built this year.