Czerkawski's first international tournament with the Polish national under-18 team was at the 1989 European U18 Division BChampionship, where he recorded 11 points in 5 games and helped Poland earn promotion to the top level for 1990. Joining the team at the 1990 tournament, he had 12 points in 6 games. He also played for Poland at the 1990 World Junior Championship, scoring one goal in seven games. Poland was relegated to Pool B (the second tier) for 1991, where Czerkawski had 12 goals and 3 assists, for 15 points, in 7 games. He also made his debut for the Polish senior team that year, playing in Pool B at the 1991 World Championships and scoring 8 points in 7 games and helping Poland earn promotion to the top tier for the following year.