Useful links to immigration information and resources:

U.S. Department of Homeland Security (DHS)  www.dhs.gov 
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U.S. Citizenship and Immigration Services (USCIS)  www.uscis.gov 

• Online Case Status (USCIS Receipt Number Required)
• Estimated Processing Times at USCIS Service Centers
• Forms and Filing Fees
• Change of Address Form (Required for all Non-Citizens within 10 days of move)
• Photo Specifications
• Employer Information (I-9 Handbook for Employers and E-verify)

U.S. Customs and Border Protection (CBP)  www.cbp.gov

• Information for Non-Citizens Arriving at a U.S. Port of Entry
• ESTA
• Estimated Wait Times at U.S. Airports and Border Crossings
• NSEERS Special Registration (Designated Ports of Departure)

U.S. Immigration and Customs Enforcement (ICE)  www.ice.gov 

• NSSERS Special Registration Information

U.S. Department of State (DOS)  www.travel.state.gov 

• Visa Bulletin (Monthly Publication on Availability of Immigrant Visas)
• Locate U.S. Consulates
• Visa Wait Times at U.S. Consulates Abroad (Nonimmigrant and Immigrant)
• Schedule Visa Appointments in Canada
• Schedule Visa Appointments in Mexico

• Foreign Embassies in the U.S.

U.S. Department of Labor (DOL)  www.dol.gov 

• PERM Online System
• PERM FAQs
• iCert Portal

U.S. Social Security Administration (SSA)  www.ssa.gov

• How to Obtain a Social Security Number

• Social Security Office Locator

Internal Revenue Service (IRS) www.irs.gov 

• Forms and Publications
   *See Publication 519 for “U.S. Tax Guide for Aliens”