Technologist Level

Technologist Geometric Dimensioning and Tolerancing Professional (GDTP) Certification, achieved by passing a computer-based, multiple choice examination, provides an objective measure of an individual's understanding of the meaning of symbols, modifiers, and relationships of Geometric Dimensioning and Tolerancing (GD&T) as applied to engineering drawings and related documentation as defined by the ASME Y14.5 Standard. 

The ASME GDTP Technologist symbol is for the sole use of those individuals who have demonstrated the required qualifications in accordance with the ASME Y14.5.2 Standard for the Certification of Geometric Dimensioning and Tolerancing Professionals (GDTP). The symbol was developed for the benefit of those who met the qualifications, and for recognition of their achievement within the field of engineering.

Senior Level 

Senior Geometric Dimensioning and Tolerancing Professional (GDTP) Certification, achieved by passing a computer-based, multiple choice examination, provides the additional objective measure of an individual's ability with respect to:  (a) understanding the meaning of the symbols, modifiers, and relationships of GD&T as applied to engineering drawings and related documentation;  (b) making the proper selection, with consideration for the function and relationship of part features, of geometric controls to document the product design intent;  (c) Performing calculations associated with GD&T;  (d) Applying the appropriate geometric control symbols, modifiers, and datum references to the engineering drawings and related documentation;  (e) Applying the principles of GD&T to the operations of manufacturing, quality control, and verification processes associated with engineering drawings and related documentation;  (f) Applying the principles of GD&T to the establishment of functional gaging activities.

 The ASME GDTP Senior symbol is for the sole use of those individuals who have demonstrated the required qualifications in accordance with the ASME Y14.5.2 Standard for the Certification of Geometric Dimensioning and Tolerancing Professionals (GDTP). The symbol was developed for the benefit of those who met the qualifications, and for recognition of their achievement within the field of engineering.