National Telecommunications and Information Administration (NTIA) chief David Redl resigned abruptly from his position on Thursday, officials confirmed.

Redl has been at the helm of the NTIA, the body tasked with advising the Trump administration's telecom policy within the Department of Commerce, since November 2017.

An NTIA spokeswoman said that Diane Rinaldo would be taking over as acting administrator. Rinaldo is a former staffer with the House Intelligence Committee who has been Redl's deputy at NTIA for the past year.

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Ajit Pai, the Republican chairman of the Federal Communications Commission, in a statement thanked Redl for his service and wished him "all the best in his future endeavors."

"David Redl is a longtime colleague, who served with distinction during his 18 months at NTIA," Pai said in a statement. "He was a vocal advocate within the Department of Commerce for repurposing federal spectrum for commercial use and fostering the private sector’s lead in 5G deployment. I thank David for his service and wish him all the best in his future endeavors.”

Redl was an adviser to Rep. Greg Walden Gregory (Greg) Paul WaldenHillicon Valley: DOJ proposes tech liability shield reform to Congress | Treasury sanctions individuals, groups tied to Russian malign influence activities | House Republican introduces bill to set standards for self-driving cars OVERNIGHT ENERGY: California seeks to sell only electric cars by 2035 | EPA threatens to close New York City office after Trump threats to 'anarchist' cities | House energy package sparks criticism from left and right House energy package sparks criticism from left and right MORE (R-Ore.) during his tenure as chairman of the House Energy and Commerce Committee.

Commerce Secretary Wilbur Ross Wilbur Louis RossTrump admin asks Supreme Court to fast-track excluding people in U.S. illegally from census Trump 'very happy' to allow TikTok to operate in US if security concerns resolved TikTok, WeChat to be banned Sunday from US app stores MORE in a statement also thanked Redl for his service.

"I thank Assistant Secretary Redl and Assistant Secretary [Mike] Platt for their service to President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE, the Department of Commerce, and the American people," Ross said in a statement. "I wish them well."

Redl was the assistant secretary for communications and information at the Department of Commerce.

The NTIA, a federal agency within the Department of Commerce, is the White House’s primary adviser on telecom policy, including broadband access and spectrum.

Michael Platt, the assistant secretary of commerce for legislative and intergovernmental affairs, also resigned from the department, according to Ross.