Not only are foreign officers and international organization employees allowed into the United States under the G4 visa but their staff and family can enter as well.
A G4 Visa lasts indefinitely as designated by the Secretary of State. It is a nonimmigrant visa, but a person is allowed in as long as his job is active.
A person allowed into the United States with a G4 Visa can only conduct duties as listed on the visa. This person can also complete other duties as stated by the president under the International Organization Immunities Act.
