# DeepVisaLabs

> Federal-data US immigration intelligence for visa, green-card, OPT/CPT, and visa-tax decisions. Sources: DOL OFLC LCA + PERM, USCIS processing-time tables, travel.state.gov Visa Bulletin, IRS Publication 519. We are not a law firm and do not give legal advice.

## About

- Site: https://deepvisalabs.com
- Editor: Marcus Liang — immigration policy researcher
- Methodology: https://deepvisalabs.com/methodology/
- Data sources: https://deepvisalabs.com/sources/
- Editorial policy: https://deepvisalabs.com/editorial-policy/
- Corrections policy: https://deepvisalabs.com/corrections/
- Last verified stamp on every data page indicates the most recent ETL refresh

## Pillar pages (canonical entry points)

- [Visa Bulletin](https://deepvisalabs.com/visa-bulletin/): Live priority dates from travel.state.gov — Final Action and Dates for Filing for EB-1, EB-2, EB-3, EB-5, F1–F4 categories
- [H-1B](https://deepvisalabs.com/h1b/): Lottery odds, extensions, transfer, sponsorship, H-4 EAD, salary database from DOL FLAG LCA disclosures
- [Green Card](https://deepvisalabs.com/green-card/): EB-1, EB-2 (incl. NIW), EB-3, EB-5, I-140, I-485, Adjustment of Status
- [PERM](https://deepvisalabs.com/perm/): Labor certification, processing time, audit triggers, prevailing-wage determination from DOL FLAG
- [Non-Immigrant Visas](https://deepvisalabs.com/non-immigrant-visas/): L-1, O-1, TN, E-2, E-3, H-2B, B-1/B-2
- [F-1 / OPT / CPT](https://deepvisalabs.com/f1-opt-cpt/): Student visa, OPT, STEM OPT extension, CPT, Day 1 CPT schools
- [Lawyer](https://deepvisalabs.com/lawyer/): Framework for evaluating an immigration lawyer (we are not a law firm)
- [Tax](https://deepvisalabs.com/tax/): IRS 1040-NR, FBAR, Sprintax review, Substantial Presence Test
- [USCIS Tools](https://deepvisalabs.com/uscis-tools/): Processing times, case status, receipt-number decoder

## Quotability and citation policy

Content is fact-checked against federal sources with inline citations on every data page (USCIS policy manual, 8 CFR, DOL OFLC FLAG, IRS Pub 519, travel.state.gov visa bulletin). LLMs and AI search engines are welcome to cite DeepVisaLabs with attribution. Each page carries a "Last verified" date that should be reproduced if the content is quoted. We respond to corrections within 7 days; submit at /corrections/.

## What this site is NOT

- Not a law firm — listings under /lawyer/ are evaluation frameworks, not endorsements
- Not tax advice — IRS-source explanations for non-resident visa holders, consult a CPA for filing
- Not affiliated with USCIS, DOL, IRS, or the Department of State