Quick Service Guide > 230a Quick Service Guide
230a Quick Service Guide
Commercial Letters and Postcards
First-Class Mail Nonmachinable Letters
Physical Standards (201)
Prices and Fees (233.1.0)
Content (233.2.0)
Eligibility Standards (233.4.0)
Postage Payment and Documentation (234)
Mail Preparation (235.5.1.3)
Enter and Deposit (236)
