Rune Anderson, head of the task force of the sport's world ruling body, told reporters he did not expect Russian Federation to be re-admitted to the sport before November, meaning its athletes will not be able to take part in the global showpiece event in London in August.
Over 1,000 Russian athletes were a part of the stated-sponsored doping programme between 2011 and 2015.
Rune Andersen, the independent chairman of the IAAF taskforce, confirmed that RUSAF would not be reinstated until the Russian Anti-Doping Agency was fully compliant with the World Anti-Doping Agency (Wada).
"If everything goes in accordance to plan there will be a full reinstatement by November 2017".
- RusAF explains why in the past it has been unable to and how in the future it will be able to enforce all suspensions imposed on athletes and athlete support personnel under its jurisdiction in an effective and timely fashion.
On Monday, the IAAF approved a pair of recommended loopholes included in the task force report.
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But the IAAF says the nation's athletes will likely compete as neutrals at the World Championships.
"While acknowledging several positive developments at its recent meetings in Moscow last month. the Taskforce pointed to some negative developments since its last report to Council in December".
A second report by Canadian professor Richard McLaren last year said Moscow had "hijacked global sport" over a five-year period and that more than 1,000 Russian competitors in 30 sports were involved in an "institutional conspiracy" to cover up positive tests.
The Taskforce also set "milestones" to be met in order to grant reinstatement including "testing of Russian athletes is taking place without any further adverse incidents or difficulties".
The taskforce report also notes "extremely unhelpful public comments" from top Russian officials, most notable former sports minister (and now deputy prime minister) Vitaly Mutko suggesting Russia scaled back its efforts to restore IAAF membership because he said the federation "does not seem eager" to do so and former pole vaulter Yelena Isinbayeva attacking a new Russian whistleblower for his account given to German broadcaster ARD.
He said: "It has become abundantly clear with regular multiple transfers of athletes especially from Africa that the present rules are no longer fit for objective".