A Green Card application is not complete without a medical examination with a so-called panel physician. All US immigration visas require that the applicant visit a doctor registered as a panel physician. The US embassy will provide the applicant with a list of doctors who are authorized to carry out these types of medical examinations. It is also important to note that an applicant must enter the USA to active their Green Card no longer than six months after this appointment.
Port of Entry (POE)
In general, a port of entry is the place where a person can legally enter a country. For the most part, a port of entry is an airport. It is also possible to enter a country by land or sea. The officer at the border will process the immigration visa for Green Card holders entering the USA for the first time.
When applying for an immigrant or nonimmigrant visa, applicants must supply a police certificate. A police certificate is an official document stating your criminal record, if you have one. In general, a police certificate is required for the applicant’s country of nationality and/or residence if they have lived there for more than 6 months since the age of 16 as well as for any other country where they have lived for longer than 12 months. Requirements for police certificates vary from country to country.
The principal applicant is the main person completing an immigrant visa application. Green Card Lottery winners are the principal applicants. The winner’s spouse and unmarried children under the age of 21 get a so-called derivative status