国际体操联合会
As other aspects of the "Code," the "Table of Elements" is frequently re-evaluated. Skills listed in the "Table" may have their difficulty ratings raised or lowered after evaluation by the FIG Technical Committee. In addition, skills that are determined to be too dangerous to the athletes may be banned outright, for example roll-out skills like the [[Thomas Salto]]. The Technical Committee may also give specific hazardous skills artificially low difficulty ratings to deter gymnasts from trying to compete them, such as the "Biles" on balance beam and also "Produnova" on women's vault, which were assigned a D-score of H (0.8) to the beam skill and 6.4 to the vault skill. The former is a double-twisting double back tucked somersault dismount, and latter is a front handspring double front somersault. The "Biles" on balance beam was originated by American [[Simone Biles]] at the [[2019 World Artistic Gymnastics Championships]], and that skill's D-score assignment of H (0.8), which the [[International Federation of Gymnastics|FIG]] has defended their somewhat underscored difficulty value of the "Biles" on balance beam by explaining that due to the extremely high risks of causing injury associated when training and/or performing this skill, they as the governing body does have the responsibility of trying keep gymnasts safe and setting the D-scores for the unnecessarily risky skills associated to perhaps a somewhat lower value than it truly deserves, simply to discourage any attempt at the skill by gymnasts who are not technically or physically ready to the try the skill just yet, to do so at an unduly higher risk of getting hurt. The "Produnova" on vault has been long considered the most difficult vault ever to be successfully completed by women. Only five women have ever successfully/officially landed the skill and earn a score in competition, and its originator, [[Elena Produnova]] of [[Russia]], the only woman who managed to first stick the vault on landing at the 1999 University Games in [[Moscow]] when it was first unveiled to the world—the vault was later officially verified for its successful completion by the [[International Federation of Gymnastics|FIG]] at the [[1999 World Artistic Gymnastics Championships]]. However, its difficulty value has been steadily decreasing over the years even though still no additional women have been able to land the skill safely or moreover officially attempted the skill in competition for many years now. This vault at one time had a D-score of 7.1, then to 7.0, and later to just 6.4 now, which is now equal to the D-score of the "Biles" on vault—technically a Yurchenko half twist onto vaulting platform and then into a double twist off it after (or again a “½ on–2/1 off” in practice). Even with the same D-score, many still see the "Produnova" as being underscored again due to the [[International Federation of Gymnastics|FIG]] openly acknowledging deliberately scoring lower of certain proportionately riskier skills like in order to discourage the selection and/or training of such skills for competition.