H-4 Visa is a subtype of H visa which is suitable for H visa holders. H-4 Visa applicants must take into consideration some important facts about peculiarities of this type of visa:
- This visa is dedicated to the spouse and children under 21 years old of H visa holder. The main purpose of this type of visa is to give an opportunity for children under 21 years old to accompany the H visa holder in his or her employment in the U.S.
- There is no need to transfer to F-1 visa if H-4 visa holder wants to study in the U.S.
- H-4 visa holders are not allowed to work in the U.S.
- The duration of this type of visa is closely connected with the principal H visa. It means that the authorized stay in the U.S under the H-4 status normally expires when H-visa holder loses their H status.