Contact Us


Tim Herrman
Professor, State Chemist and Director
(001) 979-845-1121
tjh@otsc.tamu.edu

Megan Rooney
Quality Manager
mkr@otsc.tamu.edu

PT and Control in Africa
Anne Muiruri
Analytical Chemist, Primary Contact
(+254) 0723-799-761
mawmuiruri@gmail.com

Technical Website Problems
Prabha Vasudevan
apteca@otsc.tamu.edu

2022 Important Due Dates

  • Round 1: Results have been published
  • Round 2: Results have been published


2023 PT Program Dates

  • Round 1: Shipping date, January 23, 2023 | Reporting date, April 17, 2023
  • Round 2: Shipping date, July 17, 2023 | Reporting date, October 16, 2023


PT Participants