Title
Engine Number Registration Rules
Law
Lto Memorandum Circular No. Ahs-2008-953
Decision Date
Mar 14, 2008
The LTO Memorandum Circular No. AHS-2008-953 prohibits the assignment and stamping of new engine numbers, as well as the registration of motor vehicles with altered or defaced engine serial numbers, ensuring that all vehicles are legitimately acquired and properly documented for registration.

Law Summary

Restoration of Original Engine Serial Number

  • Restoration of the original or registered engine serial number after effacement or damage is allowed only when properly documented and approved.
  • Documents required include:
    • Affidavit explaining circumstances of damage/obliteration of the serial number.
    • Owner's letter-request for restoration.
    • PNP-Technical Motor Group (TMG) macro-etching report and clearance.
    • Source ownership documents (Certificate of Registration, BOC Certificate of Payment, Sale's Invoice).
    • Motor Vehicle Inspection System (MVIS) inspection report.

Prohibitions on New Serial Number Assignments and Alterations

  • Assigning and stamping new serial numbers on defaced engines is prohibited.
  • Registration or re-registration of vehicles with altered or tampered engine numbers is disallowed.
  • Engines missing model or series identifiers in serial numbers (e.g., 7K-12345) cannot be registered or reported.

Adding Characters to Engine Serial Numbers

  • Stamping additional characters duplicating an already registered engine number is prohibited unless done by the manufacturer or assembler.
  • Such additions must be reported and approved by the Assistant Secretary.

Manufacturer's Duty in Numbering Engine Blocks, Chassis, or Body

  • Manufacturers must number every engine block, chassis, or body clearly and conspicuously.
  • The LTO may direct the location and format to ensure uniformity and proper identification.

Legal Mandate of the Land Transportation Office (LTO) in Vehicle Registration

  • LTO's role is to ensure:
    • Motor vehicles are legitimately acquired.
    • Vehicles are roadworthy.
    • Correct road user’s tax is collected.
  • Any conflicting memoranda or orders are superseded by this memorandum.

Immediate Effectivity

  • The memorandum and its guidelines took effect immediately upon adoption on March 14, 2008.

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