Why Choose AAB-MLE?

Experienced Proficiency Testing

American Association of Bioanalysts (AAB) Proficiency Testing is one of the nation’s largest full-service proficiency testing programs, servicing more than 6,500 clinical testing centers. It is approved for all analytes by Clinical Laboratory Improvements Amendments (CLIA), Joint Commission on Accreditation of Healthcare Organizations (JCAHO), Centers for Medicaid and Medicare Service (CMS), COLA, and all state agencies to satisfy proficiency testing requirement


  • First-class White Glove Customer Service and Technical Support

  • Cost-effective “add-ons”

  • Discount offers and Price Matching Option

    • ACP Membership Discount: MLE waives the annual administration fee to any organization that has an ACP member on staff.
    • Discounts for Multiple Facilities and Consultant Affiliation
    • Discounts for U.S. Federal Agencies Worldwide
  • Off-Schedule Proficiency Testing: Available to every laboratory, regardless of MLE enrollment status

  • Online Capabilities

    • Online result reporting
    • Evaluation reports: Access reports from the last 5 years
    • Participant Summaries: Print the entire summary or only the pages you need
  • FREE continuing education courses