Russia's ban from global athletics will continue until at least February.
The country has been banned from competition by the sport's world governing body, the International Association of Athletics Federations (IAAF), since November 2015 over state-sponsored doping and missed the Rio Olympics.
The head of the IAAF taskforce set up to assess Russia's anti-doping progress revealed that, although the country had made progress towards the conditions of their readmission to the international fold, they were still not ready to return.
Rune Andersen, who delivered a report to the IAAF's ruling council on Thursday, said his team would return to Moscow in January, after Canadian law professor Richard McLaren delivers his final report into Russia's doping programme, and report back the following month.
The Norwegian anti-doping expert told a press conference live-streamed by the IAAF: "I reported to the council today that RusAF (the Russian Athletics Federation) has made further progress towards satisfying the reinstatement conditions since June 2016, including rolling out anti-doping education modules for coaches and athletes, securing co-operation by the Russian criminal authorities with their French counterparts and the Russian parliament passing a new law criminalising the supply of prohibited substances to athletes."
But he added: "One of the key remaining issues is how to demonstrate that the IAAF and RUSADA (the Russian Anti-Doping Agency), once it is reinstated, will be able to conduct their anti-doping programme in Russia without outside interference."
Andersen said that when the taskforce makes its next report in February it hoped "to be able to identify a clear road map and timetable for RusAF's reinstatement".
There are no major athletics championships before February.