Articles 2.14.018, 9.2.013 and 9.2.020 of the UCI Regulations related to the Men Under 23 category have recently been amended to clearly redefine that the U23 category is open to all men riders from 19 to 22 years, no matter their team affiliation.
Therefore, riders aged 19-22 who belong to a UCI WorldTeams are now allowed to participate in both the U23 road race and time trial of the UCI Road World Championships, provided that they never took part in the Men Elite road race or time trial of a previous UCI Road World Championships. For the UCI Nations’ Cup U23 series, participation by riders on UCI WorldTeams remains authorised as in previous seasons.
2016 UCI Nations' Cup U23 calendar