If you make the decision to receive a terminal degree, keep in mind that the credit from the curriculum may or may not transfer, so you may be required to complete additional coursework to eventually further your education.
Kaza visa: US$50. Validity : Zambian visas are valid for six months from the date of issue for UK passport holders, three years for US passport holders and three months for all other passport holders. Tourists can stay for up to 90 days within a year. Business visitors can stay for up to 30 days within a year. The Kaza visa is valid for 30 days. Transit : A day tripper visa is issued to visitors entering Zambia for less than 24 hours and leaving through the same port. Certain nationals need to apply for this in advance; check with the embassy/high commission.
As with other non-immigrant U.S. visas, a B-1/B-2 visa has a validity period (from 1 to 10 years), allows for either one or multiple entries into the U.S, and elicits a period of stay (maximum 6 months) recorded by the Customs and Border Protection officer at the port of entry on the individual's form I-94.n practice, the two visa categories are usually combined together and issued as a  B-1/B-2 visa  valid for a temporary visit for either business or pleasure, or a combination of the two. Visitors from some countries do not need to obtain a visa for these purposes (see United States visas).