What Is a PSA Qualifier Grade?

A PSA qualifier is a short letter code printed in parentheses next to the numeric grade on a PSA label -- for example, PSA 8 (OC)-- flagging that a single identifiable defect, rather than the card's overall condition, is what's holding the grade at that number. See how grading actually works for the four factors (centering, corners, edges, surface) PSA normally weighs together. A qualifier interrupts that combined read: it isolates one factor as severe enough on its own to cap the grade, while the rest of the card can otherwise look higher-grade.

• OC -- Off-Center.The most common qualifier. Print-run centering was bad enough on this specific copy that it falls outside the numeric grade's normal centering tolerance, even though corners, edges, and surface look consistent with the assigned number.
• MC -- Miscut. A manufacturing cutting error more severe than off-centering -- the card stock was sliced wrong at the factory, sometimes showing a sliver of the adjacent card or an irregular, non-rectangular border.
• ST -- Stained.Discoloration from gum residue, wax paper, moisture, or another substance that's baked into the card stock and can't be removed without risking further damage. See what's safe to clean and what isn't for why graders treat most staining as permanent.
• PD -- Print Defect. A factory printing error -- ink smudges, registration lines, a printing-press streak, or similar production flaw baked into the card at manufacturing, not caused by handling.
• MK -- Marks. Writing, pen or pencil marks, or other post-production human alteration -- something added to the card after it left the factory.
• OF -- Out of Focus. The rarest qualifier, reserved for issues where the printed photo itself is blurry or poorly focused -- a photography/production defect rather than a condition issue with the physical card.

A qualified grade is not a discount label with the same value as an unqualified card at that number -- the market treats it as a meaningfully weaker card. The common trading convention is that a qualified grade prices closer to an unqualified grade roughly two points lower: a PSA 8 (ST) tends to trade closer to what an unqualified PSA 6 brings, not a standard PSA 8. That gap varies by card, defect severity, and how collectible the specific issue is, but the direction is consistent -- treat the qualifier as the number that actually drives price, not the digit in front of it.

• Read the full label, not just the headline grade. A listing title that says "PSA 8" with the qualifier cropped out of the photo or left out of the description is a common way qualified cards get sold at unqualified prices. Look up the cert number to confirm.
• Cross-check the cert against PSA's record. Use Cert Lookup to confirm a graded card's qualifier (or lack of one) matches what a seller is claiming, the same way you'd verify any other cert detail.
• Weigh a qualifier before you submit a raw card. If a card has an obvious factory print defect or stain, expect a qualifier rather than a clean numeric grade -- it doesn't mean the card will fail authentication, just that the number alone won't tell the whole story. See how to submit cards for grading for the general submission process.
• Don't confuse a qualifier with an Authentic slab. A qualifier still carries a numeric grade; PSA's Authentic designation has no number at all and is reserved for cards that are altered, trimmed, recolored, or otherwise disqualified from grading entirely. See What Is PSA Grading? for how Authentic fits into PSA's scale.

Confirm the exact card with Identify & Research — free-path first (on-device OCR, catalog match, and fingerprints). For PSA's full scale and how it compares to the alternatives, see What Is PSA Grading? and PSA vs BGS vs SGC vs CSG. For what the four grading factors mean generally, see How to Grade Sports Cards and Sports Card Condition Grading Scale Explained. For spotting alteration that goes beyond a qualifier, see How to Spot a Trimmed or Altered Sports Card, or open the full guides library.