An Internal Revenue Service reform measure co-authored by U.S. Sen. Charles Grassley was signed into law by President Donald Trump on Monday.

It is called the Taxpayer First Act. It contains a number of provisions the Iowa Republican said will protect taxpayers.

”This bipartisan, bicameral bill represents years of hard work and consensus building,” Grassley said in a written statement.

He and U.S. Sen. Ron Wyden, D-Oregon, introduced the bill earlier this year.

”It’s a big first step toward strengthening taxpayer protections and turning the IRS into the customer service organization it ought to be,” Grassley said. ”This new law is a victory for taxpayers and its critical reforms are long overdue.”

Among other things, the bill:

• Establishes an independent office of appeals within the IRS.

• Requires the IRS to submit a restructuring plan to Congress.

• Helps protect taxpayers from identity theft.

• Modifies the private debt collection system.

The Taxpayer First Act is the second measure Grassley helped to write which has been signed into law by Trump recently.

In April, the president signed the Advancing Care for Exceptional Kids Act, which is intended to provide better coordination of care for children with complex medical conditions who receive health care coverage from Medicaid. Grassley wrote that law with U.S. Sen. Michael Bennet, D-Colorado.