so here is the form for WA
from the state site: http://www.seattle.gov/courts/red_light/red_light.htm
If you were not driving the vehicle
If you were not driving the vehicle when the alleged violation occurred, you may submit, under penalty of perjury, a written statement swearing that the vehicle was not in your care, custody, or control. To do so, print and return the declaration of non-responsibility.
Return the form to the Court:
In person at 600 5th Ave (1st floor),
By fax to 206-684-8887, or
Municipal Court of Seattle
ATTN: Photo Enforcement Citations
PO Box 34987
Seattle, WA 98124-4987.
You must return the declaration to the Court by the due date shown on the front of the Notice of Infraction.
hope this helps?