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MLE Proficiency Testing Program Enrollment Information

There are four ways to place your order for the MLE program:

  • Order 2019 MLE PT Online;
  • Download one of the order forms listed below;
  • Call MLE Customer Service at 800-338-2746, ext. 4510 or 202-261-4510;
  • E-mail us at for a free catalog or for more information about our MLE program.

U.S. Catalog and Calendar

2019 U.S. Proficiency Testing Catalog  2019 U.S. Proficiency Testing Catalog



2018 U.S. Proficiency Testing Catalog  2018 U.S. Proficiency Testing Catalog



2018 U.S. Shipping Calendar  2018 U.S. Shipping Calendar



Forms for New Enrollees:

Forms for Current Enrollees

Order Selection Assistance

MLE Customer Service can ensure you enroll in the most economical order option for the tests you perform. Simply submit a complete list of the tests you perform INCLUDING the instruments/methods used to, and a Customer Service Representative will respond with the most economical order. Or, call us at 800-338-2746, ext. 4510 or 202-261-4510, for order selection assistance.