Several environmental groups have joined with the Center for Biological Diversity to petition California. Read about it here: http://www.wildcalifornia.org/blog/petition-filed-to-protect-gray-wolves-under-california-esa/
California has its own version of the endangered species act. Although wolves are not currently listed in California, they are listed federally by the U. S. Fish and Wildlife service.
One gray wolf has recently entered California from Oregon. Read about it here: http://www.dfg.ca.gov/wildlife/nongame/wolf/
The State has completed it’s initial review. Read about it here:
Here is the petition: http://www.wildcalifornia.org/wp-content/uploads/2012/02/CESA_Wolf_Petition.pdf