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FAQ’s - Frequently Asked Questions

Can my laboratory enroll in a program at any time or do we have to wait until the beginning of the year to enroll?


Your laboratory can enroll in any of our programs, at any time, and be set up to receive the very next shipment of samples for the program that you choose. We only require that your laboratory enroll in a program at least 30 days prior to the next shipment month.  See enrollment deadlines for further information.

Does AOAC INTERNATIONAL ship proficiency testing samples to international locations?


Yes. We can readily ship samples to most of North America, Central America, South America, Europe and some regions of Asia. Other international locations may be able to receive samples but the laboratory would need to hire an independent broker such as World Courier or other. 

Please contact us if your laboratory is interested in signing up for one of our programs that contains pathogens as specific countries do have regulations on importing “dangerous goods”. Pathogens are considered “dangerous goods” according to IATA regulations. AOAC staff will gladly look up this information for you.

How are results submitted?


A confidential and secure web site has been designed so that your laboratory can log in using a secure password and enter responses, methods, and results online through the use of the internet.

Laboratories also receive reports electronically through the web site. The electronic submission of results and report distribution greatly reduces the turn around time for issuing results, ensuring your laboratory receives its verified results as quickly as possible. Results can also be faxed or scanned and set by email if a laboratory does not have internet availability

Can my laboratory enroll for less than a full year’s participation?


Yes, we now offer partial shipments to fit your needs. You may enroll in as many shipments as your lab requires. Please complete the partial enrollment form or contact us at least 30 days prior to a scheduled shipment.

Are discounts given for enrolling multiple laboratories?


Yes, discounts are given on the sample prices (not the shipping prices). If your company enrolls in:
  • 5-9 programs then you will receive a 5% discount on the sample price for all participating laboratories
  • 10 or more programs you will receive a 10% discount on the sample prices for all participating laboratories

The discount applies only to the sample prices,domestic shipping prices remain the same and international prices will have to be inquired about.

How long does my laboratory have to complete the analyses?


All programs, except P01, have two weeks from the shipment date to complete the analyses and submit results. 

P01 Pesticide Residue participants have 30 days to complete the analyses and submit result.
    See shipment dates for further information.

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