The International Amateur Athletic Federation has officially ratified the following World Indoor Records, set during the 7th IAAF World Indoor Championships in Maebashi, Japan:
|4x400m||3:24.25||CHEBYKINA Tayana; GONCHARENKO Svetlana; KOTLYAROVA Olga;|
|RUS||Maebashi||7 March 1999|
Previously 3:26.84, set by Russia on 9 March 1997, during the 6th IAAF World Indoor Championships in Paris
|USA||Maebashi||7 March 1999|
Previously 3:03.05, set by Germany on 10 March 1991, during the 3rd IAAF World Indoor Championships in Seville.