There is only one type of F-1 visa.

It makes no difference if you are accepted to a private or public school. Both institutions will issue you with the Form I-20 and once you have this you would apply for the F-1 visa from the embassy in your home country.

I am not familiar with the procedures or the requirement to sign up for ‘the district high school’ nor do I really understand this part of your question. Perhaps someone else can clarify this for you, as it is 4:30am here.

If your third question is regarding can you renew your F-1 visa after 12 months when attending a public high school. Then the answer is no, students who attend public high schools in the U.S. are limited to twelve months of study.

Edit:

Carrying on from my last paragraph.

If you are attending a private or public university (not high school), then when you enter the United States on a student (F-1) visa, you will usually be admitted for the duration of your student status (often abbreviated in your passport or on your I-94 card as “D/S”). That means you may stay as long as you are a full time student, even if the F-1 visa in your passport expires while you are in America.

If you were not admitted for the duration of your student status and want to renew your F-1 visa you will need to provide:

– A passport valid for at least six months

– Form DS-156, together with a Form DS-158. Some applicants will also be required to complete and sign Form DS-157. Blank forms are available without charge at all U.S. consular offices and on the Visa Services website under Visa Applications Forms

– A receipt for visa processing fee.

– A new I-20 or an I-20 that has been endorsed on the back by a school official within the past 12 months, stating your new length of studies.

If you need any further guidance then feel free to contact me directly.