I work for a company (in California) that does not provide on-site parking spaces for all of its employees. Many employees simply park on the adjacent streets.

Now the management is attempted to regulate the parking patterns of its employees by saying we cannot park in certain areas. These street parking spaces are *not* restricted by any city or state parking regulations, nor are they off-limits according the company's conditional use permit.

My question: Is it legal for the company to regulate the off-site parking of its employees in a way that goes beyond the restrictions placed by goverments and conditional use permits? If possible, I would like a reference to any relevant code sections or cases, so I could make these known to my employer.

Yes, your employer can do this. There is no law against it, and the general rule is that employees have to follow their employer's directions, unless it would be illegal or impractable to do so.

Thanks for your quick reply. I didn't realize that employers have so much leeway.

Does this mean that an employer could, theoretically, require an employee not to drive at all, if public transportation options are practable?

That's stretching it a bit. It appears this employer is just trying to stay in the good graces of the neighborhood by not having its employees take up all the public parking spaces. If enough neighborhood people complain, it's possible that such public spaces could be limited to one or two hours, then you couldn't park there anyway.