Who would be the new world record holders?
New proposals from European track and field governing body European Athletics could see many athletes stripped of their world medals, set before 2005, depending on a vote this summer.
This means that the IAAF would then replace these records with the next best times and distances set at specific meets within its jurisdiction, in order to be ratified.
The following are what the records are at the moment, and what the records would become, if the proposal gets the backing it needs.
Women
Outdoor 100m
Old: Florence Griffith-Joyner (USA) July 17, 1988 10.49
New: Carmelita Jeter (USA) September 20, 2009 10.64
200m
Old: Florence Griffith- Joyner (USA) September 29, 1988 21.34
New: Dafne Schippers (NED) August 28, 2015 21.63
400m
Old: Marita Koch (GER) October 6, 1985 47.60
New: Sanya Richards-Ross (USA) September 16, 2006 48.70
400m Hurdles
Old: Yuliya Pechenkina (RUS) August 8, 2003 52.34
New: Melaine Walker (JAM) August 20, 2009 52.42
4x400m Relays
Old: USSR (Tatyana Ledovskaya, Olga Nazarova, Mariya Kulchunova-Pinigina, Olga Vladykina-Bryzgina) October 1, 1988 3:15.17
New: USA (Deedee Trotter, Allyson Felix, Francena McCorory, Sanya Richards-Ross) August 11, 2012 3:16.87
Indoor
60m
Old: Irina Privalova (RUS) February 11, 1993 6.92
New: LaVerne Jones-Ferrette (USV) February 6, 2010 6.97
200m
Old: Merlene Ottey (JAM) February 13, 1993 21.87
New: Veronica Campbell-Brown (JAM) February 18, 2005 22.38
Men
Outdoor
400m Hurdles
Old: Kevin Young (USA) August 6, 1992 46.78
New: Kerron Clement (USA) June 26, 2005 47.24
1500m
Old: Hicham El Guerrouj (MOR) July 14, 1998 3:26.00
New: Asbel Kiprop (KEN) July 17, 2015 3:26.69
High Jump
Old: Javier Sotomayor (CUB) July 27, 1993 2.45m
New: Mutaz Essa Barshim (QAT) September 5, 2014 2.43m
Long Jump
Old: Mike Powell (USA) August 30, 1991 8.95m
New: Dwight Phillips (USA) June 7, 2009 8.74m
Triple Jump
Old: Jonathan Edwards (GBR) August 7, 1995 18.29m
New: Christian Taylor (USA) August 27, 2015 18.21m
4x400m
Old: USA (Andrew Valmon, Quincy Watts, Harry Reynolds, Michael Johnson) August 22, 1993 2:54.29
New: USA (LaShawn Merritt, Angelo Taylor, David Neville, Jeremy Wariner) August 23, 2008 2:55.39
Indoor
200m
Old: Frank Fredericks (NAM) February 18, 1996 19.92
New: Wallace Spearmon (USA) March 11, 2005 20.10