49 U.S. Code § 32704. Service, repair, and replacement
(a) Adjusting Mileage.—A person may service, repair, or replace an odometer of a motor vehicle if the mileage registered by the odometer remains the same as before the service, repair, or replacement. If the mileage cannot remain the same—
the person shall adjust the odometer to read zero; and
(b) Removing or Altering Notice.—
A person may not, with intent to defraud, remove or alter a notice attached to a motor vehicle as required by this section.