Billing Options:

• Complete a Form AG-257 to be billed after services have been completed. 
• • Department Contact: Courtney Overby
  • Email: courtney.overby@ag.tamu.edu
  • This form only needs to be completed once. If you’ve previously used AgriLife Extension services, you may already have a customer number—please include it on your TPDDL form when submitting samples.
    • Note: We cannot begin processing your sample without a customer number.

• If you are a homeowner or prefer not to provide identity information (e.g., SSN):
  • You may pre-pay by check instead of submitting Form AG-257.
  • Make checks payable to Texas AgriLife Extension Service.
  • The check must be made for the exact amount needed (e.g., $35 routine diagnostic fee, $55 routine + serological testing, etc.).
  • Use blue or black ink only.
  • Include the check and all required forms in the box with your sample.
  • You do not need to complete Form AG-257.
  • You will not be billed after your report is sent.
  • We will only perform the specific service(s) paid for—no additional confirmatory diagnostics will be conducted.