§ 1051.135 How must I label and identify the vehicles I produce?
Each of your vehicles must have three labels: a vehicle identification number as described in paragraph (a) of this section, an emission control information label as described in paragraphs (b) through (e) of this section, and a consumer information label as described in § 1051.137.
(a) Assign each vehicle a unique identification number and permanently affix, engrave, or stamp it on the vehicle in a legible way.
(b) At the time of manufacture, affix a permanent and legible emission control information label identifying each vehicle. The label must be
(1) Attached so it is not removable without being destroyed or defaced.
(2) Secured to a part of the vehicle (or engine) needed for normal operation and not normally requiring replacement.
(3) Durable and readable for the vehicle's entire life.