From August 1 onwards, setting will only be permitted when the score reaches 14-all (10-all in ladies' singles). The choice will be either to continue the game to 15 points (11 in ladies' singles) or to set the game to 17 points (13 in ladies' singles). If players choose to set, the score is no longer called as "love-all"; instead the score continues to be called to 17 or 13 as appropriate.

There will be an interval of 90 seconds between the first and second games, and not exceeding five minutes between the second and third.

The IBF has approved coaching during both intervals. Players will not be allowed to leave the court during the 90 seconds interval without theumpire's permission. However, the law that allows players to leave the court during the five minutes interval is unchanged.

IBF has also modified the division of prizes in all World Grand Prix events. With effect from October 1998, 23.2 per cent is allotted to men's singles; 17.4 per cent to women's singles; 21.6 per cent to men's doubles; 18.9 per cent to women's doubles; 18.9 per cent to mixed doubles.

Regarding advertising on players' clothing, the IBF has approved appearance of adverts on five locations - left sleeve, right sleeve, left collar, right collar, front of shirt, with immediate effect. Each advert must be 20 square centimeters or less and there must be no more than three in total and only one per location.

The IBF has also approved appearance of two adverts on each sock and each shoe, provided each advert is 20 square centimeters or less.