The Italian Olympic Committee (CONI) has called for doping bans of two years for 26 of its track and field athletes.
CONI made the request following an investigation by prosecutors in the city of Bolzano.
All of those on the list - which includes five athletes who had already qualified for the 2016 Olympic Games in Rio de Janeiro - are accused of evading doping tests but insist there was an administrative error.
Among those implicated are 2012 Olympic triple jump bronze medallist Fabrizio Donato and 2007 World Championships long jump silver medallist Andrew Howe.
They and the other 24 accused are set to face trials at CONI's anti-doping court.
Additionally, 39 athletes were cleared, including 2008 Olympic 50-kilometre walk race champion Alex Schwazer - who was banned for three-and-a-half years after being excluded from the 2012 Games following an adverse result in a doping test.