Posted for September 2013


"Jim's knowledge and presentation captivated the class.  I am excited about GD&T now."   ...DaimlerChrysler

"I'm happy to report that...we have had (9) individuals successfully attain GD&T certification.  We can all directly thank Jim for his excellent course instruction in recognizing this accomplishment."  Larry...Benet

Welcome to, the on-line home of James D. Meadows & Associates, Inc. James Meadows is an ASME Certified Sr. Level GDTP and has been a full-time Geometric Dimensioning and Tolerancing (GD&T) trainer and consultant since 1982.


James D. Meadows' focus is on the interpretation and application of Geometric Dimensioning and Tolerancing (GD&T) as defined by the ASME Y14.5-2009 Standard, as well as the 1982 and 1994 releases of the ASME Y14.5 "Dimensioning and Tolerancing" Standard. Along with providing GDT training (basic through advanced GD&T applications) and consulting for all product lines of private industry and government organizations/contractors, as well as for major universities, James D Meadows is a nationally- and internationally-recognized GD&T expert and GDT author. James D. Meadows & Associates, Inc., is registered with ORCA and CCR and is a WOSB.


If you have any questions about GD&T training or GDT services, please reach out to James D. Meadows & Associates, Inc., at (615)-824-8644.


"Great entertaining speaker, very knowledgeable." FRC EAST, Cherry Point, NC

We provide:

Web-Based Training


Training at your fingertips...  with our new 'web-based' training. Follow James D. Meadows lesson by lesson through an instructor-led live presentation.

1) Tolerance Stack-Up Analysis (for Plus and Minus and Geometric Tolerances); © February 2014...coming soon...

2) GD&T - Applications, Analysis & Measurement Training Series (per ASME Y14.5M-1994 and Y14.5-2009 and the differences between them); © February 2014
...coming soon...

3) Applications-Based GD&T Training Series (per ASME Y14.5M-1994); ©1995

1) purchase the entire series as a download
2) purchase as individual lesson downloads
3) purchase each lesson as a 48 hour rental or purchase the entire series as a 48 hour rental

-To take full advantage of the training, we recommend you also purchase the text and workbook used in the training presentation (course materials vary depending on which web-based series you are watching).

-Pause the lesson and work the reinforcement exercises, then turn the lesson back on to see how each problem is completed.

-Since the lessons build in complexity, we recommend you start with the first and follow through each successive lesson.



  Textbooks, workbooks and reference materials.  

  Both of these programs are structured to allow students to participate by completing applications-based problems throughout the courses. Self-teaching/classroom use or site licenses available.  

Public Courses

  In cooperation with professional societies, colleges, and universities, James D. Meadows provides public courses in Geometric Dimensioning and Tolerancing and related topics.  

Consulting Services


Whether it is in the form of customized on-site or public Geometric Dimensioning and Tolerancing training programs, books or DVDs, the training we offer is among the most comprehensive on the market today!

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