This Standard establishes certification requirements for a Geometric Dimensioning and Tolerancing Professional (GDTP). Certification will be based upon the current edition of the Y14.5 Dimensioning and Tolerancing Standard, its appendices, and the application of its principles and concepts. (GD&T)
ASME Y14.5-2018 history
1970ASME Y14.5-2018 Certification of Geometric Dimensioning and Tolerancing Professionals