Do you mean one of these? Just serving the laundry?
I am not sure what I would cite to require an additional circuit.
210.11(C)(2) Laundry Branch Circuits. In addition to the number of branch circuits required by other parts of this section, at least one additional 20-ampere branch circuit shall be provided to supply the laundry receptacle outlet(s) required by 210.52(F). This circuit shall have no other outlets.
It doesn't say 120v only