Quick Service Guide > 230b Quick Service Guide
230b Quick Service Guide
Commercial Letters and Postcards
First-Class Mail Machinable Letters and PostCards
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)
Enter and Deposit (236)
