There is ongoing matter in relation to whether “J” would be
confirmed as a wake turbulence designator considering the numbers of A380 aircraft operating continued to increase.

Although there is a group still studying the subject of wake turbulence designators it is reccomended to take advantage of the need to code software for the Amendment 1 implementation to also code the “J” wake turbulence designator. This would result in cost and effort savings for States and ANSPs.