LTO Memorandum Circular No. AVT-2015-1919

: The stamping or engraving of chassis numbers must be approved and supervised by the concerned Operations Division, Regional Office.
: The chassis number must be a minimum of fourteen (14) characters and a maximum of seventeen (17) characters.
: The chassis number is structured as follows: an alphabetical code for the manufacturer (e.g., ABC), followed by the year of manufacture (e.g., 2015), then a sequential number (e.g., 0001), and finally a letter denoting the type, such as "C" for chassis.
: A logbook must be maintained by the Operations Division, Regional Office to record and monitor chassis numbers to avoid duplication.
: Manufacturers must submit sales invoices of materials used, an affidavit of fabrication, and a stencil of the chassis number.
: The chassis number must be legible, durable, and not easily altered in all cases.
: Yes, all orders, circulars, or memoranda inconsistent with this memorandum circular are hereby superseded.
: The letter at the end of the chassis number indicates the type of item, with "C" representing Chassis.