Publication 109 - Extra Services Technical Guide
September 2007

Transmittal Letter 1 General Information 1-1 How to Use This Publication 1-2 The DUNS/Mailer ID Number 1-3 Customer Service 2 Privately Printed Extra Services Forms and Labels 2-1 Introduction 2-2 Things Needed Before Printing 2-3 Certified Mail — PS Form 3800 2-4 Insured Mail — PS Form 3813-P 2-5 Registered Mail — Label 200 2-6 Return Receipt — PS Form 3811 2-7 Return Receipt for Merchandise — PS Form 3804 2-8 Barcode Requirements

3 Electronic File Transmission 3-1 Introduction 3-2 Things Needed to Get Started 3-3 Certification Process for Electronic File Transmission 3-4 Electronic File Format 3-5 Uploading Electronic Files (Header and Detail Records) 3-6 Retrieving Confirmation/Error/Warning Reports 3-7 Retrieving Data Extract Files 4 Bulk Return Receipts (Electronic) 4-1 Benefits 4-2 Basic Considerations 4-3 Responsibilities 4-4 Payment 4-5 Customer Support 4-6 Technical Solution