With respect to your question, "Is that allowed in CA?", I really don't know the answer, but if you have a really good reason for your circumstances than I think that you have to take up the assignment as a 1099-Misc contractor.
But, I suggest that you carefully review the IRS requirements for being a qualified consultant or as an independent contractor!
Please click the following link below to familiarize yourself with the IRS requirements of passing the litmus test of being an independent contractor. Will your employee's status as an outside contractor pass the IRS litmus test?
Good Luck on your assignment!