Crop Guidelines

Early Sampling (pdf)

Establishing Crop History (pdf)

Modified Land History (pdf)

Seedling Inspection Summary

Seed Processing and Sampling Guidelines

Blends (pdf)

Company Tag Printing (pdf)

Guide for Certification Samplers and Taggers (pdf)

Interagency Certification (pdf)

Mixtures (pdf)

Online Mixture Authorization (pdf)

Resample-Retests (pdf)

Tag Reissue Instructions (pdf)

OECD Lot Size information 

OSCS Policies

Policy on Variety Ownership and Seed Source Eligibility for Varieties in the Oregon Seed Certification Service Program (pdf)

Useful Tips

How to booklet

Oregon Quadrant Explained

Online Crop Signup Guide

Mapping options

TRS Map (Willamette Valley)

TRS Grid

Finding your TRS