| Frequency | Monthly |
| General note | Reuse of record except for individual research requires license from LexisNexis Academic & Library Solutions. |
| General note | July issues also include list of persons guilty of mail fraud; international postal regulations and rates; data on postmaster salaries, prices of stamped envelopes, and number of post offices by State and class; and index. |
| General note | July issues include lists of post offices, alphabetically and by State and county; list of Government installations and corresponding post offices; list of post offices discontinued due to rural free delivery; sea and rail registered mail pouch routes; list of counties; postal laws, regulations, and conventions; and orders, circulars, and rulings affecting postal service. |
| General note | Other monthly issues include changes to information contained in July issues; list of post offices established, closed, and renamed; additional orders, circulars, and rulings affecting postal service; changes in post offices authorized to issue money orders; and announcements of conferences for postmasters. |
| General note | Series of guides for local postmasters, with postal orders and procedures, and lists of U.S. post offices. July issue is the primary issue for the year; other monthly issues supplement and update it. |
| Entirely indexed by |
CIS Index to U.S. Executive Branch Documents, 1789-1909 Part 6 |
| Reproduction note | Joyner- Microfiche. [Bethesda, Md.]: LexisNexis Academic & Library Solutions, 1995. 11 x 15 cm. (CIS US Executive Branch Documents : no. P110-4.1 to P110-4.2) |
