The International Association of Athletics Federation (IAAF) has released details of the qualification standards require for competitors at the 2017 World Championships in London.
Among the times set for track events, qualification will be given to any athlete who runs a time of 10.12sec in the menís 100 metres while 11.26 is the mark for the womenís event.
To be part of the 200m, men will reach the Championships being hosted in the Olympic Stadium if they better 20.44 and women have a target of 23.10.
Anyone who clocks a time of 45.50 for men or 52.10 for women will make the 400m competition.
Among the field events, javelin throwers will qualify if they achieve marks of 83m for men and 61.40m for women, while discus athletes have been set distances of 65m and 61.20m.
The IAAF have also set out criteria for top finishers at designated competitions.
Area champions will achieved qualification, with the exception of marathons while field events will be subject to approval by technical delegates.
Runners who finish in the top 15 of the 10,000m finals at the IAAF World Cross-Country Championships in Kampala, Uganda, will also be heading to London.
The top three finishers from events in 2016 including the IAAF Combined Events Challenge, World Race Walking Challenge and IAAF World Race Walking Team Championships will also be given spots at the event.
For the marathons, top 10 finishers from IAAF Gold Label Marathons will be given qualification.
Wild cards will also be available to reigning world, 2016 IAAF Diamond League winners and Hammer Throw Challenge champions if they are entered by their nationís athletics federation.
Any remaining places at the end of the qualification window will be filled by the best ranked athletes at the time with the exception of the 5,000m, 10,000m, marathon and walking events.
Athletes have until July 23rd to achieve qualification for the Championship, due to run from August 4th to 13th.