The business visa on arrival has been reintroduced and allows business visitors to obtain a non-extendable 90-day business visa at the airport. 

Immigration officials at the airport retain discretion to issue a business visa on arrival, and may refer a traveller to the Labour Department if they believe that a work permit is necessary.  If this occurs, the official may issue an Ordinary Visa so the applicant can apply for a work permit in Tanzania.  The Ordinary Visa does not allow work or business activities