Seen in Montréal
New format introduced to replace 01A AAA due to too many inappropriate combinations, with some having been accidentally issued already.
From Andru Tomoiu and Manny Jacob: Passenger plate series progression since 1995:
A-H, J-N, Q, Y, R, Veteran P, SAA-SSZ, PDA-PDH, remainder of S, remainder of P, T, V, W, X, Y, Z. Early P series (PAA-PCZ) set aside for Veteran plates. Jean-François Lapointe reports 001 PDA as the lowest regular P series seen. The P series began to be issued before the S series was exhausted, and the T series followed P, but S series plates were still being issued. Highest P and S series issued around same time in late 2006-early 2007, then T, V, W, X, Y, and Z thereafter.
Jean-François Lachance spotted 002 AAA on 2009-01-04. In the original run of the AAA 001 and up series, Louis P. Lamy reports a high of ZZZ 985. According to Louis, AAA 001 was issued to a woman in Hull. The lowest Louis has seen is AAA 137.
Reverse series Z High: 999 ZZZ 2010-05-14 François-Pierre Doyon
Low on the newest format: B07 AAA 2014-08-21 Tom Rodda