====== 绿卡申请中的常见术语 ======

|A#, A-Number|Alien Registration Number|
|AC21|American Competitiveness in the 21st Century Act of 2000|
|ACWIA|American Competitiveness and Workforce Improvement Act of 1998|
|AD|Approval Date|
|ADIT|Alien Documentation, Identification and Telecommunications system|
|AILA|American Immigration Lawyers Association|
|AO|Administrative Officer|
|AOS|Adjustment of Status (485 pending) or Affidavit of Support|
|AP|Advance Parole or Assistant Professor|
|ARC|Alien Registration Card (also called Green Card or Permanent Residence Card)|
|ASC|Application Service Center (local USCIS service center)|
|BC|Birth Certificate|
|CBP|U.S. Customs and Border Protection|
|CDP|Card/Document Production|
|CFR|Code of Federal Regulations|
|CIR|Comprehensive Immigration Reform|
|CO|Certifying Officer (of DOL)|
|COS, C/S|Change of Status|
|CP|Consular Processing|
|CPT|Curricular Practical Training|
|CSC|California Service Center (= WAC)|
|DACA|Deferred Action for Childhood Arrivals|
|DHS|Depart of Homeland Security|
|DIY|Do-It-Yourself|
|DOE|Date of Entry|
|DOL|Department of Labor|
|DOS|Department of State|
|D/S|Duration of Status|
|EAC|Eastern Adjudication Center (= VSC)|
|EAD|Employment Authorization Document|
|EB|Employment-based|
|EB2C|EB2 China|
|EB2I|EB2 India|
|EB3C|EB3 China|
|EB3I|EB3 India|
|EIN|Employer Identification Number|
|ETA|Employment and Training Administration (of DOL)|
|EVL|Employment Verification Letter|
|FEIN|Federal Employer Identification Number|
|FOIA|Freedom of Information Act|
|FP|Finger Print|
|GC|Greed Card (also called Alien Registration Card or Permanent Residence Card)|
|ICE|U.S. Immigration and Customs Enforcement|
|INA|Immigration and Nationality Act|
|INS|Immigration and Naturalization Services (transferred to USCIS, ICE, and CBP in 2003)|
|IO|Immigration Officer|
|IR|Initial Review|
|LC|Labor Certification|
|LCA|Labor Condition Application|
|LD|领导 (spouse)|
|LIN|Lincoln, NE (= NSC)|
|LPR|Lawful Permanent Resident|
|LUD|Last Updated Date|
|MSC|Missouri Service Center|
|NAICS|North American Industry Classification System|
|NBC|National Benefits Center|
|NC|Name Check|
|ND|Notice Date|
|NIW|National Interest Waiver|
|NOID|Notice of Intent to Deny|
|NPWC|National Prevailing Wage Center|
|NSC|Nebraska Service Center (= LIN)|
|NVC|National Visa Center|
|OES|Occupational Employment Statistics|
|OMB|Office of Management and Budget|
|OPT|Optional Practical Training|
|OR|Outstanding Researcher|
|PD|Priority Date|
|PERM|Program Electronic Review Management System|
|PL|Petition Letter|
|POE|Port of Entry|
|PP|Premium Processing|
|PR|Permanent Residence|
|PRC|Permanent Residence Card (also called Alien Registration Card or Green Card)|
|PW/PWR|Prevailing Wage/Prevailing Wage Rate|
|PWD/PWRD|Prevailing Wage Determination/Prevailing Wage Rate Determination|
|RD|Receipt Date or Received Date|
|RFE|Request for Evidence (注意不是REF，也不是reference)|
|RL|Reference Letter|
|ROW|Rest of world|
|SEVIS|Student and Exchange Visitor Information System|
|SO|Spill Over|
|SOC|Standard Occupational Classification|
|SR|Service Request|
|SRC|Southern Regional Center (= TSC)|
|STEM|Science, Technology, Engineering, and Mathematics|
|SWA|State Workforce Agency|
|TSC|Texas Service Center (= SRC)|
|USCIS|U.S. Bureau of Citizenship and Immigration Services|
|VB|Visa Bulletin|
|VSC|Vermont Service Center (= EAC)|
|WAC|Western Adjudication Center (= CSC)|