In the United States, seed potato certification agencies are run by state departments of agriculture, grower organizations, or universities. Although seed certification regulations vary among states, all states must meet a federal standard for seed potato disease tolerances and quality.

These PDF files describe details of seed potato certification:

• DATCP Seed Potato Certification
• Wisconsin Certified Seed Potato Rules
• The Benefits of using Certified Seed Potatoes
• Quick Reference: Testing Requirements for shipping Seed to other States and Provinces

To reach the WSPCP office:

Wisconsin Seed Potato Certification
807 Fifth Ave. P.O. Box 328
Antigo WI 54409
Phone: 715-623-4039
Toll-free: 877-335-7333
FAX: 715-623-6970