| Section No. | Description |
|---|---|
| Section 111.1 | Availability of the Mailing Standards of the United States Postal Service, Domestic Mail Manual |
| Section 111.2 | Amendments to the Mailing Standards of the United States Postal Service, Domestic Mail Manual |
| Section 111.3 | Approval of the Director of the Federal Register |
| Section 111.4 | First-Class Mail |