
Preparing for the GDTP exam takes more than knowing GD&T. You also need to understand what the exam covers, how questions are structured, and where to focus your study time.
The GeoTol ASME GDTP Y14.5-2018 Certification Study Guide was created to give you a structured approach to preparing for the exam.
Focused preparation with a written study guide and video walkthroughs.
Test your knowledge and identify areas to review before exam day.
Prepare for the additional depth required at the Senior certification level.
The ASME GDTP certification exam tests your understanding of the ASME Y14.5-2018 standard—but preparing effectively requires more than simply reading the standard from beginning to end.
This study guide helps you understand:
You may already use GD&T every day, but the GeoTol study guide helps you understand both the technical content and the question formats for GDTP certification.
The study guide is supported by video walkthroughs that help you work through the material and better understand how to approach certification-style questions.
Rather than studying completely on your own, you can follow along as key sections and sample questions are broken down.
The sample questions are linked to relevant paragraph references within ASME Y14.5-2018, making it easier to return to the standard and study the underlying concept.
GeoTol has spent decades teaching professionals how to understand and apply Geometric Dimensioning & Tolerancing.
References are also provided to relevant GeoTol GD&T course units and pages, so candidates using GeoTol training can quickly find additional instruction related to the questions they are studying.

GeoTol has spent decades teaching professionals how to understand and apply Geometric Dimensioning & Tolerancing.
The study guide was developed under the direction of Scott Neumann, President of GeoTol and Vice Chair of both the ASME Y14.5 and Y14.5.1 committees. Scott also serves on the ASME Y14.5.2 certification committee, the committee responsible for developing questions for the GDTP certification exam.
That firsthand involvement brings a unique understanding of the Y14.5-2018 Standard, the certification process, and the knowledge candidates are expected to demonstrate on the GDTP exam.
Take the Guesswork Out of Your GDTP Exam Preparation
Prepare with a resource created specifically for the ASME GDTP Y14.5-2018 Technologist and Senior certification exams.
Study the guide. Watch the walkthroughs. Practice what you’ve learned.
$89 — Includes the Written Study Guide + Videos + Both Practice Exams