The sale and import of new communications equipment from five Chinese companies has been banned by the US.
Hikvision and Dahua are two companies that make video cameras.
This is the first time that US regulators have taken such a step.
According to Hikvision, its products do not present a security threat.
The decision will do nothing to protect US national security, but will make it more harmful and more expensive for US small businesses, local authorities, school districts, and individual consumers to protect themselves, their homes, businesses and property.
The Chinese government has denied that they have received data from the companies.
The new rules were adopted by the FCC's members on Friday.
The FCC is committed to protecting our national security by making sure that communications equipment is not allowed to be used within our borders.
She said that the new rules are important in protecting the American people from national security threats.
Products that were approved for sale in the US can still be sold by the firms listed.
It's possible that existing authorisations could be revoked in the future because the FCC is seeking comment on future revisions to the rules.
Chinese tech firms have been subject to restrictions in the US due to espionage concerns.
The actions designed to limit Chinese firms' access to the US market began under Barack Obama. During Donald Trump's presidency, they were accelerated and have continued under Joe Biden's rule.
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