Advanced science.  Applied technology.


Geometric Dimensioning and Tolerancing (GD&T) Webinar

Mar 20, 2024 to Mar 22, 2024
Drawing with a bearing


GD&T is an international symbolic language used on mechanical engineering drawings to supplement and optimize traditional coordinate dimensioning and tolerancing. Learn the following:

  • What is it, who uses it, and why
  • Metric and Inch dimensioning and tolerancing conventions
  • Major Elements of GD&T
  • Key elements and major changes to the last three revisions to Y14.5 and ISO 1101
  • Aerospace and automotive specific standards, requirements, and exceptions to Y14.5
  • How to Interpret Feature Control Frames, Datums, and Basic Dimensions
  • Inspection and measurement options and strategies for of each of the 14 GD&T Symbols
  • Advantages and Disadvantages of GD&T for Design, Manufacturing, and Inspection
  • Customized application and interpretation exercises based on Participant Drawings*

This program is appropriate for all management, design, manufacturing, quality, inspection, purchasing personnel to understand the benefits and proper application and interpretation of GD&T.

Registration includes:

  • PDF participant materials emailed to each participant prior to the webinar
  • Pre/post assessment
  • Various references, GD&T inspection calculators, and other tolerancing tools
  • Certificate of Completion
  • Customized exercises based on participant drawings, views, or examples
  • On-going email and telephone support from ITR available.


For more information, contact Sandra Hawkins.

Upcoming Classes

Geometric Dimensioning and Tolerancing (GD&T) Advanced Live Interactive Webinar

March 20-22, 2024

Course Hours 10:00 a.m. - 2:30 p.m. Central
Extra Q&A Sessions 9:30 a.m. - 10:00 a.m., 2:30 p.m. - 3:00 p.m. Central

Online (at your computer)

​Early-Bird Registration (before COB March 6): $595 per participant
Late Registration (March 7 to COB March 19) $695 per participant 

Space is limited; register promptly. Registration ends once availability is full

Geometric Dimensioning and Tolerancing (GD&T) Introduction Live Interactive Webinar

April 3-5, 2024

10am to 2:30pm Central
Faculty Office Hours: 30 minutes before and after each session

Online (at your computer)

$595 per participant until March 20; $695 thereafter

Space is limited; register promptly. Registration ends once availability is full

Geometric Dimensioning and Tolerancing (GD&T) Introducción Webinar en Español

April 17-19, 2024/17-19 de abril, 2024

Course Hours 9:00 a.m. – 4:00 p.m. Central/9:00 a 16:00 Central

Online (at your computer)/En su computadora

Early-Bird Registration (before COB April 3): $595 per participant/Hasta 3 abril: $595 USD por participante
Late Registration (April 4 to COB April 15): $695 per participant/Entre 4 abril a 15 abril: $695 USD por participante