WASHINGTON, June 23 (Reuters) - Tesla told U.S.

regulators that all of its answers to questions on the safety of

its robotaxi deployment in Texas are confidential business

information and should not be made public, according to a letter

released Monday.

On Friday, the National Highway Traffic Safety

Administration said it was reviewing answers given in response

to the agency's questions about the safety of its self-driving

robotaxi in poor weather among other issues. The agency said

Monday that federal law "restricts NHTSA's ability to publicly

release what the companies label as confidential." The agency

added that "following an assessment of these responses and other

relevant information, NHTSA will take any necessary actions to

protect road safety."