 When "PAY 9999" was reached, the second alphabetical sequence was reset and the first alphabetical sequence progressed; resuming at "PBA 1".As the most registered number plate series in the country, the W series' traditional 7-character format became the first in Peninsular Malaysia to be exhausted when "WYY 9999" was reached on 26 September 2013.To allow further W plates, the algorithm was altered to feature an alphabetical suffix behind the number sequence, resetting at "W 1 A".