How verdicts are checked.

Every verdict starts from a primary source, not from forum posts, retail listings, or AI guesses. The goal is to make the page useful for exam-day planning while still pushing readers back to the testing authority before they rely on it.

1. Read the official policy. We locate the current policy page or PDF from the exam authority, record the publisher, source URL, access date, and the rule text that matters for calculators.
2. Match the exact calculator model. We check the printed model name, hardware class, and relevant features such as CAS, graphing, programmability, communication, app dependency, and known banned or conditional traits.
3. Publish a dated verdict. The page shows the status, short answer, confidence, last verified date, official source, caveats, and alternatives so readers can see the basis for the call quickly.

The verifiedBy field means the status was reviewed through the ExamCalculatorGuide editorial process. It does not mean the exam authority, calculator manufacturer, or retailer reviewed or endorsed the page.

Published verdicts are scheduled for recheck every 90 days. A verdict may be updated sooner if an official policy changes, a calculator model is renamed, or a reader reports a source that needs review.