PT Providers
A provider of PT samples must be accredited by a Proficiency Testing Provider Accreditor (PTPA) that meets the TNI requirements. A listing of organizations that are accredited to provide PT samples is available below.
TNI PT Provider Code |
PT Provider |
Contact |
City, State |
Phone |
TNIPTP16 | Hamden, CT |
800-368-1131 |
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TNIPTP19 | Parkersburg, WV |
304-422-4274 |
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TNIPTP21 | Golden, CO |
303-431-8454 |
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TNIPTP31 | Albany, NY |
518-474-7161 |
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TNIPTP36 | Raleigh, NC |
800-234-7837 |
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TNIPTP46 | Golden, CO |
303-940-0033 |
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