Body of Knowledge

  • Geometric Dimensioning and Tolerancing (GDT) - Based on ASME Y14.5 - 2009
    • Geometric Control Symbols
    • Geometric Tolerancing Fundamentals
    • Feature Control Frame
    • Datum Reference Frame (DRF)
  • General Measurement & Inspection
    • Measurement & Test Equipment (M&TE) Selection and Use
    • Inspection

For more details, review the Inspector Study Guide.


  • Not applicable at this time


  • 50 questions
  • 90-minute time limit
  • Proctor required
  • Paper version available
  • One free retake within one year from the original purchase date


Visit the Credentialing Fees page for the latest pricing information.

Study Material

More Information