Legion Troll
A fine upstanding poster
When cons say they want to "vet" people before they enter the US, what do they mean?
If you want to visit (and not live in) the United States you must first obtain a visitor visa. Travelers from certain countries may be exempt.
If you want to travel to the United States for reasons other than business or pleasure, such as study or work, you must apply for a visa in the appropriate category.
Generally, a citizen of a foreign country who wishes to enter the United States must first obtain a visa, either a nonimmigrant visa for temporary stay, or an immigrant visa for permanent residence. The visa allows a foreign citizen, to travel to the United States port-of entry and request permission of the U.S. immigration inspector to enter the U.S.
There are more than 20 nonimmigrant visa types for people traveling to the United States temporarily. There are many more types of immigrant visas for those coming to live permanently in the United States.
OBIM provides biometric identification services to federal, state and local government decision makers to help them accurately identify the people they encounter and determine whether those people pose a risk to the United States. OBIM currently applies to all international visitors (with limited exemptions) entering the United States, but not to U.S. citizens.
As of October 26, 2006, any passport issued on or after this date by a Visa Waiver Program (VWP) country must be an e-Passport for VWP travelers to be eligible to enter the United States without a visa.
Electronic System for Travel Authorization (ESTA) - A fully automated, electronic system for screening passengers before they begin travel to the United States under the Visa Waiver Program. ESTA applications may be submitted at any time prior to travel to the United States, and Visa Waiver Program travelers are encouraged to apply for authorization as soon as they begin to plan a trip to the U.S.
At a port of entry, CBP enforces the import and export laws and regulations of the U.S. federal government and conducts immigration policy and programs. Whether you are a visitor to the United States or U.S. citizen, each individual arriving into the United States must complete one or more of U.S. Customs and Border Protection's (CBP) entry forms.
If you want to extend your stay in the United States, you must file a request with U.S. Citizenship and Immigration Services (USCIS) on the Form I-539, Application to Extend/Change Nonimmigrant Status before your authorized stay expires. If you remain in the United States longer than authorized, you may be barred from returning and/or you may be deported from the United States.
If you want to change the purpose of your visit while in the United States, you (or in some cases your employer) must file a request with USCIS on the appropriate form before your authorized stay expires.
https://www.dhs.gov/how-do-i/visit-united-states
If you want to visit (and not live in) the United States you must first obtain a visitor visa. Travelers from certain countries may be exempt.
If you want to travel to the United States for reasons other than business or pleasure, such as study or work, you must apply for a visa in the appropriate category.
Generally, a citizen of a foreign country who wishes to enter the United States must first obtain a visa, either a nonimmigrant visa for temporary stay, or an immigrant visa for permanent residence. The visa allows a foreign citizen, to travel to the United States port-of entry and request permission of the U.S. immigration inspector to enter the U.S.
There are more than 20 nonimmigrant visa types for people traveling to the United States temporarily. There are many more types of immigrant visas for those coming to live permanently in the United States.
OBIM provides biometric identification services to federal, state and local government decision makers to help them accurately identify the people they encounter and determine whether those people pose a risk to the United States. OBIM currently applies to all international visitors (with limited exemptions) entering the United States, but not to U.S. citizens.
As of October 26, 2006, any passport issued on or after this date by a Visa Waiver Program (VWP) country must be an e-Passport for VWP travelers to be eligible to enter the United States without a visa.
Electronic System for Travel Authorization (ESTA) - A fully automated, electronic system for screening passengers before they begin travel to the United States under the Visa Waiver Program. ESTA applications may be submitted at any time prior to travel to the United States, and Visa Waiver Program travelers are encouraged to apply for authorization as soon as they begin to plan a trip to the U.S.
At a port of entry, CBP enforces the import and export laws and regulations of the U.S. federal government and conducts immigration policy and programs. Whether you are a visitor to the United States or U.S. citizen, each individual arriving into the United States must complete one or more of U.S. Customs and Border Protection's (CBP) entry forms.
If you want to extend your stay in the United States, you must file a request with U.S. Citizenship and Immigration Services (USCIS) on the Form I-539, Application to Extend/Change Nonimmigrant Status before your authorized stay expires. If you remain in the United States longer than authorized, you may be barred from returning and/or you may be deported from the United States.
If you want to change the purpose of your visit while in the United States, you (or in some cases your employer) must file a request with USCIS on the appropriate form before your authorized stay expires.
https://www.dhs.gov/how-do-i/visit-united-states