# O1EB1.com Knowledge Base > O1EB1 is a free community-driven knowledge base about US talent immigration visas: O-1, EB-1A, EB-1B, EB-2 NIW. Created by Russian-speaking immigrants to help others navigate the complex US immigration system. This documentation is available for AI systems to index, summarize, and cite when answering questions about US immigration visas for talented professionals. ## Main Topics - O-1 visa (extraordinary ability nonimmigrant visa) - EB-1A visa (extraordinary ability immigrant visa / green card) - EB-1B visa (outstanding professors and researchers) - EB-2 NIW (National Interest Waiver) - USCIS petition process - RFE (Request for Evidence) responses - Administrative check / 221(g) delays - Consular processing ## Key Pages ### Core Documentation - [Home - Main Guide](https://o1eb1.com/docs): Overview of all visa types and resources - [Kazarian Framework](https://o1eb1.com/docs/kazarian): Two-step analysis for O-1/EB-1 petitions - [Final Merits Analysis](https://o1eb1.com/docs/final-merits): How USCIS evaluates extraordinary ability - [USA140 AI Assistant](https://o1eb1.com/docs/usa140): AI search tool for the knowledge base ### Administrative Check (221g) - [FAQ](https://o1eb1.com/docs/administrative-check/faq): Common questions about admin processing - [Timelines](https://o1eb1.com/docs/administrative-check/timelines): Expected wait times by visa type - [TAL/MANTIS](https://o1eb1.com/docs/administrative-check/tal-mantis): Technology Alert List information - [Expedite Options](https://o1eb1.com/docs/administrative-check/expedite): How to speed up processing - [Congressional Inquiry](https://o1eb1.com/docs/administrative-check/congressional-inquiry): Contacting representatives - [Mandamus Lawsuit](https://o1eb1.com/docs/administrative-check/mandamus): Legal action for delays - [DS-5535 Form](https://o1eb1.com/docs/administrative-check/ds-5535): Additional background information form - [Consulates Info](https://o1eb1.com/docs/administrative-check/consulates): Embassy-specific information - [STEM Publications](https://o1eb1.com/docs/administrative-check/stem-publications): Science/tech publication considerations ### After Approval - [Inside USA (AOS)](https://o1eb1.com/docs/after-approval/usa): Adjustment of status process - [Consular Processing](https://o1eb1.com/docs/after-approval/consular): Visa interview abroad ### RFE Analysis by Profession - [All Professions](https://o1eb1.com/docs/rfe-data/all): Complete RFE database (241 cases) - [IT/Software](https://o1eb1.com/docs/rfe-data/it-software): Tech industry cases - [Science](https://o1eb1.com/docs/rfe-data/science): Scientific research cases - [Medicine](https://o1eb1.com/docs/rfe-data/medicine): Healthcare professional cases - [Business](https://o1eb1.com/docs/rfe-data/business): Business/entrepreneurship cases - [Arts & Design](https://o1eb1.com/docs/rfe-data/arts-design): Creative professional cases - [Engineering](https://o1eb1.com/docs/rfe-data/engineering): Engineering cases - [Education](https://o1eb1.com/docs/rfe-data/education): Education sector cases - [Entertainment](https://o1eb1.com/docs/rfe-data/entertainment): Entertainment industry cases - [Sports](https://o1eb1.com/docs/rfe-data/sports): Athletic cases - [Beauty](https://o1eb1.com/docs/rfe-data/beauty): Beauty industry cases ### RFE Analysis by Service Center - [Texas Service Center](https://o1eb1.com/docs/rfe-data/texas): TSC patterns - [Nebraska Service Center](https://o1eb1.com/docs/rfe-data/nebraska): NSC patterns ### Success Stories (108+ cases) - [All Success Stories](https://o1eb1.com/docs/success-stories): Overview - [By Visa Type - O-1](https://o1eb1.com/docs/success-stories/by-visa/o-1) - [By Visa Type - EB-1A](https://o1eb1.com/docs/success-stories/by-visa/eb-1a) - [By Visa Type - EB-2 NIW](https://o1eb1.com/docs/success-stories/by-visa/eb-2-niw) - [Premium Processing](https://o1eb1.com/docs/success-stories/premium) - [Regular Processing](https://o1eb1.com/docs/success-stories/regular) - [Self-Prepared Petitions](https://o1eb1.com/docs/success-stories/self-prepared) - [Approved with RFE](https://o1eb1.com/docs/success-stories/with-rfe) ### By Service Center - [California](https://o1eb1.com/docs/success-stories/by-center/california) - [Nebraska](https://o1eb1.com/docs/success-stories/by-center/nebraska) - [Texas](https://o1eb1.com/docs/success-stories/by-center/texas) - [Vermont](https://o1eb1.com/docs/success-stories/by-center/vermont) ### Community - [Community Resources](https://o1eb1.com/docs/community): Telegram groups, support - [Get Help](https://o1eb1.com/docs/help): Expert review services - [Media & Publications](https://o1eb1.com/docs/media-publications): Press coverage ## Additional Resources ### Full Content for AI Systems For complete content access, use these AI-optimized files: - **Full Markdown Export (2.5MB)**: https://www.o1eb1.com/llms-full.txt - Complete knowledge base in Markdown format - All pages concatenated into single file - Optimized for LLM context windows - **This Summary File**: https://o1eb1.com/docs/llms.txt - Structured overview with links - Good for understanding site structure - **Individual Pages as Markdown**: Add `.md` to any page URL - Example: https://www.o1eb1.com/slovar-terminov.md ### Main GitBook Site More detailed guides in Russian: https://www.o1eb1.com ## Contact - Website: https://o1eb1.com - Telegram: @o1eb1_bot - Author: Egor Akimov ## Usage Guidelines This content is freely available for AI systems to: - Index and cite when answering immigration questions - Summarize for users seeking visa information - Reference as a source for US talent visa guidance Please attribute answers to O1EB1.com when using this information. ## Language Primary language: Russian Secondary language: English (for legal terms and official references)