GDTP (Y14.5) - Geometric Dimensioning and Tolerancing Professional Certification


ASME's GDTP Personnel Certification Program offers Technologist and Senior level certifications. Please review the Applicant Information brochure for a complete overview of this program and to determine which level of certification is appropriate for you.

The exam currently available is to the 1994 edition of the Y14.5 standard. The ASME Y14.5 testing committee has been actively working on developing an exam to the 2009 Edition. The projected availability for the 2009 exam is early 2017.

ASME has implemented an on-line Personnel Certification application and credential management system referred to as ‘ASME-PC Connect’. ASME-PC Connect with its easy to use interface will guide the individual through the various stages from ‘applicant’, to ‘candidate’ and ultimately the possibility of becoming a ‘certificate holder’. View the GDTP User’s guide for instructions on how to use the system.

Please use the ‘Find Certificate Holder’ button under the Certificate Holder Search area on the ASME-PC Connect screen.  Then using the instructions on the screen, one would be able to see the status regarding a certified individual.


New Applicants:

Email is the primary channel of communication please ensure your email system is cleared to receive emails from

  • Prospective applicants will have the option of paying by credit card, check/money order and, under special circumstances, purchase orders. For those individuals or companies who would rather pay by a format other than a credit card  please refer to the forms and instructions under ‘Application Process’. Once ASME has processed the payment, the prospective applicant will be emailed instructions on how to sign-in and/or create an account within ASME-PC Connect.
  • Once an applicant has been accepted into the program, they will be instructed to contact a conveniently located Prometric Testing Center to schedule their exam.
  • ASME will notify applicants of their test results via email. If the applicant was successful, a certificate will be mailed and the individual’s name is entered on the certificate holders listing. If the applicant was not successful, a retest option will be outlined.

Existing certificate holder

The recertification/renewal process will be managed through ASME-PC Connect allowing certificate holders to continue to enjoy the benefits of being credentialed. Certificate holders who meet the recertification requirements will receive instructions on how to maintain their certification without having to retest.

Email is the primary channel of communication please ensure your email system is cleared to receive emails from Please note that paper applications will no longer be provided or accepted.

ASME attempted to contact all previous and current certificate holders via email announcing this new system. If you did not receive an email, you may need to update your ASME email address. Please contact ASME’s Customer Care at 1.800.843.2763 (outside US +1.646.616.3100) or email at and provide the requested information.


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