The German Swimming Federation, or DSV is the aquatics national federation for Germany. It oversees competition in the 5 aquatics disciplines.
It is affiliated to:
FINA, which oversees international swimming;
LEN, which oversees swimming in Europe;
the German Olympic Sports Confederation; and
the German Government's Secretary of State for Sport.
Among other responsibilities, DSV is charged with:
fielding German teams to international aquatics competitions,
maintaining the German Records for swimming,
organizing German Championships in aquatics.
DSV was created on 8 August 1886. It has its headquarters in Kassel. From Wikipedia