According to BWF status 2018/2019
ALTERNATIVE SERVICE LAWS. Please note that for each of the Alternative Laws of Badminton, all of the Laws of Badminton (BWF Statutes, Section 4.1 – Laws of Badminton) apply, except where specifically noted below.
Fixed Service Height Laws
a) the whole shuttle shall be below the server’s waist at the instant of being hit by the server’s racket. The waist shall be considered to be an imaginary line round the body, level with the lowest part of the server’s bottom rib;
b) the shaft and the racket head of the server’s racket at the instant of hitting the shuttle shall be pointing in a downward direction.
No on-court testing of rackets by players on court anymore.
In the interests of speeding up play, players are no longer allowed to test new rackets on court before continuing play (e.g. testing a replacement racket after breaking strings or otherwise). This has been introduced together with umpires also having more attention on securing continuous play.
Umpires have already been instructed to enforce this new on-court protocol, and so we appreciate your understanding in ensuring a smooth transition at upcoming tournaments.