Dr. Gridlock appears Thursdays in Extra and Sundays in the Metro section. You can write to Dr. Gridlock at 1150 15th St. NW, Washington, D.C. 20071. He prefers to receive e-mail, at drgridlock ...

“This program requires the vehicle’s model year to align with the year the plate was originally issued.” If interested, Google “REG 352” to get the proper DMV form. Q.

The number of cars I see with a Virginia rear plate but no front plate is growing at such a rate that I wonder whether I've missed a new regulation making front plates optional.