USP Proficiency Testing Program

We have an important update regarding the USP Proficiency Testing (PT) program. After careful consideration, we have made the decision to discontinue the USP Proficiency Testing (PT) Program.

We have set August 11, 2023, as the official end date for the program.

Inquiries regarding the USP PT Program can be sent to

Please contact customer support via the following options.
Phone: 919-789-3000 or 800-234-7837 (toll free)

Please visit the FAQs page for more information regarding the USP PT Program.

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