Primary sources

This register consolidates the official URLs cited by the current data entries. A listing means the source supports at least one description of scope, access, terminology, or procedure. It does not mean that Federal Data Reference republishes or mirrors the source’s records.

1. https://api.data.gov/docs/
2. https://data.census.gov/
3. https://data.gov/
4. https://data.gov/about
5. https://history.state.gov/historicaldocuments/about-frus
6. https://home.treasury.gov/
7. https://nces.ed.gov/
8. https://pacer.uscourts.gov/
9. https://pacer.uscourts.gov/pacer-pricing-how-fees-work
10. https://resources.data.gov/resources/dcat-us/
11. https://www.archives.gov/
12. https://www.archives.gov/declassification
13. https://www.archives.gov/isoo/training/mdr
14. https://www.archives.gov/records-mgmt/scheduling
15. https://www.archives.gov/research/guide-fed-records/groups
16. https://www.archives.gov/research/start
17. https://www.archives.gov/veterans
18. https://www.blm.gov/
19. https://www.bls.gov/
20. https://www.cdc.gov/
21. https://www.cdc.gov/nchs/w2w/index.htm
22. https://www.census.gov/
23. https://www.census.gov/about/policies/privacy/data_stewardship/disclosure_avoidance.html
24. https://www.cms.gov/
25. https://www.congress.gov/
26. https://www.consumerfinance.gov/
27. https://www.defense.gov/
28. https://www.dhs.gov/
29. https://www.doi.gov/
30. https://www.dol.gov/
31. https://www.ed.gov/
32. https://www.eia.gov/
33. https://www.energy.gov/
34. https://www.epa.gov/
35. https://www.epa.gov/enviro
36. https://www.faa.gov/
37. https://www.fcc.gov/
38. https://www.fda.gov/
39. https://www.fec.gov/
40. https://www.fec.gov/data/
41. https://www.federalregister.gov/
42. https://www.federalregister.gov/reader-aids/using-federalregister-gov
43. https://www.foia.gov/
44. https://www.foia.gov/agency-search.html
45. https://www.foia.gov/faq.html
46. https://www.foia.gov/how-to.html
47. https://www.ftc.gov/
48. https://www.gao.gov/
49. https://www.govinfo.gov/
50. https://www.govinfo.gov/about
51. https://www.govinfo.gov/app/collection/cfr
52. https://www.gsa.gov/
53. https://www.hhs.gov/
54. https://www.irs.gov/
55. https://www.justice.gov/
56. https://www.justice.gov/oip/doj-guide-freedom-information-act-0
57. https://www.justice.gov/opcl/privacy-act-1974
58. https://www.nass.usda.gov/
59. https://www.nhtsa.gov/
60. https://www.ntsb.gov/
61. https://www.sec.gov/
62. https://www.sec.gov/search-filings
63. https://www.sec.gov/search-filings/edgar-search-assistance/accessing-edgar-data
64. https://www.sec.gov/structureddata
65. https://www.state.gov/
66. https://www.transportation.gov/
67. https://www.usa.gov/register-business
68. https://www.usa.gov/state-local-governments
69. https://www.usaspending.gov/
70. https://www.uscourts.gov/
71. https://www.uscourts.gov/court-records/find-case-pacer
72. https://www.usda.gov/
73. https://www.usgs.gov/
74. https://www.uspto.gov/
75. https://www.uspto.gov/patents/search
76. https://www.uspto.gov/trademarks/search
77. https://www.whitehouse.gov/omb/

Source policy

Procedure and legal statements are grounded in official government pages or official guidance. Sources are checked for publisher identity, topic match, and current availability. We do not substitute an unofficial blog for an agency instruction or infer a fee, deadline, address, or restriction from an unsupported summary.

Each detailed entry records the verification date. Because government pages and systems can change after that date, follow the destination’s current instructions before submitting information or payment. Report a changed source through the contact page.