Here is a great web site for the history of BC plates:
http://www.bcpl8s.ca/Passenger-main.htmFrom this site:

1979 - 1985
The brand new 1979 base! This particular style would last all of seven years, which is a very short period if one considers the life span of the flag graphic has been 16 years and counting! This series started with: AAA - KKJ, and experienced a variety of different dies. Position of the sticker box is also firmly established in the lower-center of the plates with this series.

1985 - 2001
The Flag Graphic. BC undertook a complete re-issue in time for the 1986 World's Fair held in Vancouver (as testified to by the validation sticker at right). The 'Beautiful' slogan is retained, now appearing across the top of the plate. The sticker box is still lower-center but is now debossed. And, of course, the highly stylized graphic of the provincial flag seperating the alpha-numeric serial format. This specific serial started in the L's and ended in the K's.

2001 - Present
ICBC has run out of the AAA-000 combinations! Apparently ICBC considered the option of re-issuing previously assigned, terminated licence plate numbers but decided to continue its "one person/one time" policy for assigning plates. To do this plates now come in the 000-AAA serial format. Unfortunately, the 'Flag Graphic' will be with us for a while yet.