Visitors to Tanzania must acquire a visa from one of the Tanzanian embassies or apply online for an e-visa unless they belong to a visa exempt country or eligible to obtain a visa on arrival. Citizens of some countries and territories can visit Tanzania without a visa for a period of 3 months. Diplomats and special passport holders of Brazil, China, India and Turkey do not require a visa to enter Tanzania. Nationals of some specified countries need to obtain a visa in advance as they need consent from the Commissioner General of Immigration.

For more details on visa issues of Tanzania, you may visit the following websites:

https://www.worldtravelguide.net/guides/africa/tanzania/passport-visa/