If one goes to the document, “Summary of differences between the FIDE Laws of Chess and the US Chess Official Rules of Chess, 7th edition” at the web address shown now without quotes, https://new.uschess.org/sites/default/files/media/documents/uschess-rules-fide-laws-comparison-1-1-2023.pdf
there is an apparent error for the US Chess Rule portion of the document for Topic/Area Number 12. The US Chess Rule states, “The US Chess rules do not have an explicit rule requiring moves to be made with one hand (except in blitz). This is implied, however, by rule 16B1. . .”
Shouldn’t the actual rule reference be 16C1 rather than 16B1 or something besides 16B1?
Is there someone who can correct this?
The link you gave is now invalid; here’s an updated version for your convenience: https://new.uschess.org/sites/default/files/media/documents/uschess-rules-fide-laws-comparison-1-1-2023.pdf.
Directly quoting the 7th Edition Rulebook, 16B1 states “Players must remove their hands from the clock button after depressing the button and must keep their hands off and away from the clock until it is time to press it again.” 16C1 states “Each player must operate the clock with the same hand that moves the pieces.”
I don’t think this is actually an error. The underlying idea is there is not an explicit “one-hand” rule, which is why it points to 16B1 which has a vague mention of clock handling instead. 16B1 mentions that after pressing the clock, the player must keep it away until completing their next move which loosely mentions a continuous action. 16C1 states the same hand must be used to move the pieces and press the clock, but it doesn’t explicitly prohibit the player from using both hands when moving itself.
Neither one of these rules establishes a true “one-hand” rule which is why the document states “The US Chess rules do not have an explicit rule requiring moves to be made with one hand… this is implied however…”
You could try to contact fide@uschess.org.