The Croatian Second Football League, known as Druga HNL, is the second tier of professional football in Croatia. It features clubs that compete for promotion to the top division, the Prva HNL. The league was established in 1992 and has undergone various changes in format and structure over the years. The league typically consists of 10 to 16 teams, depending on the season. Each team plays home and away matches, accumulating points to determine their standings. The top teams at the end of the season can earn promotion, while the bottom teams may face relegation to lower divisions.