WASHINGTON (REUTERS) - The US telecommunications regulator plans to vote in November to designate China's Huawei Technologies and ZTE Corp as national security risks, barring their US rural carrier customers from tapping an US$8.5 billion government fund to purchase equipment or services.

The Federal Communications Commission also plans to propose requiring those carriers to remove and replace equipment from such designated companies, FCC officials said on Monday (Oct 28).

At a meeting set for Nov 19, the FCC said it plans to vote to ask carriers how much it would cost to remove and replace Huawei and ZTE from existing networks and to establish a reimbursement program to offset the costs of removing the equipment.

"When it comes to 5G and America's security, we can't afford to take a risk and hope for the best," FCC Chairman Ajit Pai said in a statement.

"As the United States upgrades its networks to the next generation of wireless technologies - 5G - we cannot ignore the risk that the Chinese government will seek to exploit network vulnerabilities in order to engage in espionage, insert malware and viruses, and otherwise compromise our critical communications networks."

This is the latest in a series of actions by the US government aimed at barring US companies from purchasing Huawei and ZTE equipment.

Huawei and ZTE would have 30 days to contest the FCC's national security risk designation and a final order compelling removal of equipment is not expected until next year at the earliest.

Huawei declined to comment and ZTE did not immediately respond to a request for comment.

Pai first proposed in March 2018 barring companies that posed a national security risk from receiving funds from the FCC's Universal Service Fund, but did not name Huawei or ZTE.

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The fund provides subsidies to provide service in rural or hard-to-reach areas, and to libraries and schools.

FCC Democratic Commissioner Jessica Rosenworcel noted the action is coming after 18 months of review and the FCC should take additional actions.

"We need to be mindful that in a global economy, our networks will still connect to insecure equipment abroad. So we should start researching how we can build networks that can withstand connection to equipment vulnerabilities around the world," Rosenworcel said.

The FCC argues the companies' ties to the Chinese government and military apparatus, and Chinese laws requiring that such companies assist the Chinese government with intelligence activities, pose a US national security risk.

Congress has been considering legislation to authorise up to US$1 billion for small and rural wireless providers to replace network equipment from the Chinese companies.

The FCC could tap the fund itself to pay for replacing equipment if Congress does not act.

About a dozen rural US telecom carriers that depend on inexpensive Huawei and ZTE switches and equipment were in discussions with Ericsson and Nokia to replace their Chinese equipment, Reuters reported in June.

The United States has been pressing nations not to grant Huawei access to 5G networks and alleged Huawei's equipment could be used by Beijing for spying, which the Chinese company has repeatedly denied.

Pai said in a Wall Street Journal opinion piece Monday that "China could compel Huawei to spy on American individuals and businesses. Imagine if a 5G network with Huawei equipment were operating near a US military installation, critical infrastructure facility or other sensitive location."

He also cited a report by cybersecurity firm Finite State that "found a majority of the Huawei firmware images it analyzed had at least one potential back door and that each Huawei device had an average of 102 known vulnerabilities."

Several European countries in recent months have not agreed to bar Huawei, despite intense US pressure.

In May, Trump signed a long-awaited executive order declaring a national emergency and barring US companies from using telecommunications equipment made by companies posing a national security risk.

The order directed the Commerce Department, working with other government agencies, to draw up an enforcement plan by mid-October. The Commerce Department has yet to publish a plan.

The US government added Huawei to its economic blacklist in May, saying the Chinese company was involved in activities contrary to US national security.