Look up · Code dictionary
Search CO-50 and friends.
Type the code from your letter, like CO-50 or PR-1. We say what it usually means and what to check.

Look up a code
Meanings are general. Your own letter and plan control.
Look up · Code dictionary
Type the code from your letter, like CO-50 or PR-1. We say what it usually means and what to check.

Meanings are general. Your own letter and plan control.