Pujāts will succeed Normunds Garbars, who announced he'd step down starting January 22 due to reaching retirement age.
Pujāts has worked in the Interior Ministry for over 25 years and was made General in 2018. He was made State Border Guard Deputy Chief last year.
Outgoing Interior Minister Rihards Kozlovskis said that Garbars has successfully started a number of important reforms, like improving border infrastructure on the Latvian-Russian border and the Latvian-Belarusian border.
The Chief of the Border Guard is appointed for a five-year term by the Interior Ministry, subject to approval by the cabinet.