My question involves a traffic citation from the state of: Oregon

Hi, I received a packing violation. The violation does not make any mention of what City code I violated, or anything at all regarding any statute I'm supposed to be in violation in. Do I not have the right to know what I'm being charged with? Does the USC or some other code not say (reference please) that I Have a right to know what I'm being charged with?

Help appreciated. It seems to me this ticket would be completely invalid without that information.