Source Methodology
How ImmigrationTimes.org collects, validates, and publishes immigration processing-time data from official government sources.
44
USCIS forms
65
Snapshots
Mar 14, 2022
Oldest USCIS data
Jun 23, 2026
Newest USCIS data
Source chain
USCIS processing times: daily snapshots of the USCIS Processing Times publication are merged into the master database by form, office, subtype, publication date, and range endpoint. Public pages, JSON, CSV, embeds, and chart PNGs are generated from the same database.
DOL PERM: the PERM page and API use the Department of Labor FLAG processing-times publication, including analyst review, audit review, reconsideration queue dates, and average processing days.
Visa Bulletin: priority-date pages and API exports use the U.S. Department of State Visa Bulletin, separated by Final Action Dates and Dates for Filing.
Validation
- Generated pages, API JSON, API CSV, embeds, and PNG charts are regenerated from the same SQLite source.
- Build-time guards fail the generation step when a known data-labeling or citation contract regresses.
- Quality status records row counts, form counts, office counts, source-date range, and the last generated timestamp.
Related references
Open Data
Bulk download links, DOI mirrors, API paths, and license details.
/data/
About ImmigrationTimes.org
Independence, data-source context, and citation policy.
/about/
OpenAPI spec
Machine-readable API contract for JSON and CSV endpoints.
/api/openapi.yaml
Press kit
Citation formats, embeds, and media contact details.
/press/
Cite this page
ImmigrationTimes.org. (2026). Source Methodology. Retrieved Jul 4, 2026, from https://immigrationtimes.org/methodology/.