Matriculation is a record of an individual personal data in order to entera n educational institute, in this case, to enroll as a student in a university.
What requisites do you need to start the matriculation process?
Due to the large number of universities in the US, admission requirements may vary from one institution to another. This process requires a lot of time that is why it should be done well in advance.
Most universities require official grade certificates from High School, TOEFL and SAT scores, and a few letters of recommendation.