@ozski basic rule of thumb is if out on the trail encounters...leave em alone.
If they are in the boathouse or near my home hast la vista mo fo! To answer your question I have never heard of anyone getting in trouble for killing a Rattler in Ca. Nor have I even considered it a law I was breaking.
@jimbrake that's great he warned you. Three years ago this July was when the little bugger on my property tagged me on the heel. 99.9% of the ones I've encountered don't rattle. They are so used to critters walking by them due to being so well blended in.
@TEL that's part of the problem, the longer you go without seeing one the less you think you will see one and you let your guard down. When I got bit I did not have a flashlight and it was almost dark. I also was not looking where I was walking. He wanted nothing to do with me until I stepped right next to hime
I live in rattlesnake country at 3.000' elev in Ca foothills they are where we live, climb, ski and Mt bike