As an AI language model, my information might not be up-to-date, and travel requirements can change quickly due to various reasons. It is always advisable to check the latest travel requirements before planning your trip.

That being said, here are some general requirements for travelers visiting Tanzania:

1. Passport: You will need a valid passport to enter Tanzania. Your passport must be valid for at least six months beyond your intended stay.

2. Visa: Most visitors to Tanzania require a visa, which can be obtained online or upon arrival at the airport. The cost of the visa varies depending on your country of origin and the type of visa you need.

3. Yellow Fever Certificate: If you are arriving from a country where yellow fever is endemic, you will need to show proof of vaccination against yellow fever.

4. COVID-19 Requirements: Due to the ongoing COVID-19 pandemic, travelers to Tanzania may be required to show proof of a negative COVID-19 test taken within a certain timeframe before arrival. You should check the latest requirements with your airline or the Tanzanian embassy in your country.

5. Travel Insurance: It is recommended to have travel insurance that covers medical expenses and emergency evacuation in case of illness or injury while in Tanzania.

6. Other requirements: Depending on your travel itinerary, you may need additional permits or vaccinations. For example, if you plan to climb Mount Kilimanjaro, you will need a climbing permit, and if you plan to visit Zanzibar, you may need to show proof of vaccination against yellow fever and take other health precautions.

It's always a good idea to check the latest travel requirements before you go and to consult with your embassy or consulate in Tanzania if you have any questions or concerns