The API Certificate of Participation for a given year will generally be mailed to all API customers by the end of May.
If your laboratory enrolled in proficiency testing or signed up with API after May 1st, then you should receive it within 4-6 weeks of enrollment.
If you did not receive your Certificate of Participation or you need an additional copy, you may access a copy (download/view/print) under Evaluation Reports on the API website. Only the primary contact on the account will have access to the Certificate of Participation. Sub-users do not have access to the certificate.