On Wednesday, the IAAF announced the qualifying standards and procedures for the 2015 IAAF World Championship in Beijing, China. 

One key difference in the 2015 standards is that the IAAF has established "the ideal number of athletes (and relay teams) to start in each event of the championships and shall ensure that such ideal numbers are met through a qualification system which, essentially, combines entry standards (only one standard) and invitations based on rankings."

Athletes can punch their ticket to China in several ways: 1) Hitting an entry standard set forth below. 2) Qualifying by placing at specific competitions. 3) Being the defending champion or Diamond League series champion. If there are two athletes from the same country, only one will be selected through this rule. 4) Remaining spots can be filled by the best-ranked athletes in certain events.

Relays also have their own set of qualifying procedures.

The qualifying period opened on Jan. 1 for 10,000-meter run, marathon, race walk, relays and combined events. All other events opened up on Oct. 1. The deadline to hit these standards is Aug. 10, 2015. 

All rules and procedures can be found in greater detail on the IAAF website.

 

Women	Event	Men
11.33	100m	10.16
23.20	200m	20.50
52.00	400m	45.50
2:01.00	800m	1:46.00
4:06.50 4:25.20	1500m Mile	3:36.20 3:53.30
15:20.00	5000m	13:23.00
32:00.00	10,000m	27:45.00
2:44:00	Marathon	2:18:00
9:44.00	3000m steeplechase	8:28.00
13.00	100/110m hurdles	13.47
56.20	400m hurdles	49.50
1.94	High jump	2.28
4.50	Pole vault	5.65
6.70	Long jump	8.10
14.20	Triple jump	16.90
17.75	Shot put	20.45
61.00	Discus	65.00
70.00	Hammer	76.00
61.00	Javelin	82.00
6075	Heptathlon*	-
-	Decathlon*	8075
1:36.00	20km race walk*	1:25:00
-	50km race walk*	4:06:00
Top 8 at IWR  + 8 from top lists	4x100m relay	Top 8 at IWR  + 8 from top lists
Top 8 at IWR  + 8 from top lists	4x400m relay	Top 8 at IWR  + 8 from top lists