The NBA league office has sent all 30 teams a memo that they must certify and submit the precise height and age for every player within the first week of training camp, according to Marc Stein of The New York Times.

Players have been listed as taller and some others shorter than they really are. The league is hoping to make it uniform and transparent for all involved, asking teams to measure their players with shoes off. Weight, however, won’t be all that pertinent, considering that it often fluctuates throughout the course of the season.

Among the biggest perpetrators of this has been Kevin Durant, who has infamously admitted on several occasions he is indeed taller than the 6-foot-9 height he has been listed at throughout his career.

Other players have added an extra inch in hopes to not give up that much of a height disparity on paper, though the height advantages and disadvantages are clearly seen on the court once the ball tips off.

Barring the stacking of several socks before players are measured, this should provide a more accurate reading of a player’s height, so prepare to see that some of these stars are not as tall as they claim to be and some others taller than they let on.

As for age, it’s hard to fathom an NBA player trying to circumvent that, considering there are birth certificates that each organization has on record as part of their medical records. However, Stein notes that Buddy Hield’s age being reported incorrectly is an impetus for this change.