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Agency prefix 1601 · OS · Defense and National Security · Latest filing 2025-09-30
Agency summary
Agency code: OS
Government type: Defense and National Security
Indexed filings: 79
Latest filing date: 2025-09-30
Parent family and related agencies
Parent family: Department of Homeland Security
| OMB Prefix | Agency | Code | Filings |
|---|---|---|---|
| 1600 | Department of Homeland Security | DHS | 52 |
| 1610 | Office of Civil Rights | OCR | 6 |
| 1615 | U.S. Citizenship and Immigration Services | USCIS | 1878 |
| 1620 | U.S. Secret Service | USSS | 11 |
| 1625 | U.S. Coast Guard | USCG | 952 |
| 1630 | Directorate of Information and Analysis and Infrastructure Protection | IA&IP | 2 |
| 1640 | Directorate of Science and Technology | S&T | 55 |
| 1641 | Homeland Security Advanced Research Projects Agency | HSARPA | 0 |
| 1650 | Directorate of Border and Transportation Security | BTS | 0 |
| 1651 | U.S. Customs and Border Protection | USCBP | 936 |
| 1652 | Transportation Security Administration | TSA | 372 |
| 1653 | U.S. Immigration and Customs Enforcement | USICE | 215 |
| 1660 | Federal Emergency Management Agency | FEMA | 746 |
| 1670 | Cybersecurity and Infrastructure Security Agency | CISA | 171 |
| 1680 | Office of the Undersecretary for Management | M | 0 |
| 1690 | Office of the Inspector General | OIG | 1 |
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