Visa policy of Transnistria
Transnistria does not require foreign citizens to obtain a visa; however, foreign citizens need to obtain and fill out a migration card (scanners are installed at some checkpoints to automatically fill them out). The validity period is 45 days with the possibility of extension for a period not exceeding 3 years.
Source: Wikipedia — Visa policy of Transnistria (CC BY-SA 4.0)