DEEP VISA LABS · SOURCES
Data Sources
Every number on the site links inline to one of these federal sources. Cadence column is the publication frequency we re-sync from.
| Source | Description | Cadence | Link |
|---|---|---|---|
| DOL OFLC | Department of Labor — Office of Foreign Labor Certification (LCA + PERM + Prevailing Wage) | quarterly | official source |
| USCIS | US Citizenship and Immigration Services — processing times, I-129 / I-485 stats | monthly | official source |
| Visa Bulletin | US Department of State — Visa Bulletin (priority dates) | monthly | official source |
| IRS Pub 519 | IRS Publication 519 — US Tax Guide for Aliens (1040-NR, SPT, FBAR) | annual | official source |
What we don't cite
- Self-reported salary aggregators (Glassdoor, levels.fyi). Selection bias is severe; LCA filings are the legal floor and we cite those instead.
- Lawyer-blog estimates for processing times. USCIS publishes the official tables monthly — we cite USCIS.
- Reddit / forum threads for individual case experience. We don't generalize from anecdotes.