CGC Pokemon Slab Mechanical Error: Label Correction or New Grade?

Learn when CGC fixes a Pokémon slab label, when the grade may change, and how to verify the certification first.

A CGC Pokémon slab mechanical error—wrong, incomplete, missing, or improperly stocked label information—usually calls for a label correction, not a new grade. A grade change becomes possible when CGC finds that the printed grade is plainly wrong or accepts the card for Appearance Review. No primary source identifies a specific Pokémon-slab incident behind this question. The answer therefore depends on CGC's documented general policies, not a verified outcome for one particular card.

Table of Contents

What qualifies as a mechanical error?

cgc defines a label mechanical error as incomplete, inaccurate, or missing label information, or the use of incorrect label stock. CGC says it corrects a qualifying label error without charge under its Mechanical Errors policy.

The label must have been wrong when CGC issued it. If the information was accurate then but later became outdated after a catalog change, CGC does not treat that as a mechanical error. The owner would need paid ReHolder service instead.

When can the grade change?

A standard ReHolder submission replaces an intact holder while preserving the assigned grade. CGC's Services & Fees page says clerical label errors may be corrected during processing, but CGC can also convert a submission to Appearance Review. That distinction matters.

Correcting a misspelled card name, missing detail, or other label information ordinarily does not reopen the grade. A printed grade that is obviously wrong is different. CGC's Guarantee gives the example of a card labeled CGC 10 that plainly should be CGC 1; CGC would update the encapsulation with an appropriate label at no charge. A card that merely appears overgraded instead goes through free Appearance Review, which can produce a new holder with a lower grade.

Who can request a correction?

Anyone may submit a CGC label defect, including someone who bought the slab after grading. The Mechanical Errors policy places no time limit on label-error submissions.

Holder defects follow a narrower rule. Only the original submitter may return a defective holder, and the return must occur within 14 days of receipt. Buyers should therefore distinguish incorrect label information from damage or defects in the plastic holder.

What should an owner or buyer do?

Start by entering the certification number on CGC's Verify Certification page. Compare the physical label with the recorded grade, card description, and holder images. Use the result to choose the appropriate route: Keep the distinction clear when describing the problem: a wrong label calls for correction, while disagreement with an apparently valid grade calls for review.

  • If the label conflicts with CGC's certification record, request a mechanical-error correction.
  • If the slab is intact and only needs a new holder or an updated label, use ReHolder service.
  • If the printed grade is obviously clerical, describe the grade discrepancy as the error.
  • If the label and database agree but the card appears overgraded, request Appearance Review.

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