My company has a 4 day 10 hour per day work week. We currently work the days between Christmas and New Years Eve. I would like to estabilish a comp time program or some sort of other program so that employees can use this time to take those days off with out cutting into their very limited vacations days. I've asked our HR department about setting up such a program, but as much as they would like to the State of California does not allow for any such program. I can't seem to find anything listed on the state website concerning comp time and a 4-10 work week.

Is true, because of our 4-10 work week we can't empliment a comp time or similar system? Where should I look to find information to present to our HR department?

If you mean by comp time what most people mean by comp time, both state and Federal law prohibits comp time in lieu of overtime for non-exempt employees.

I don't see how the 4/10 schedule makes a difference here.

As far as saving hours for Christmastime, sorry, can't help you. You could try to negotiate a pay decrease/vacation time increase, if you want.

For shorter-term issues, if your company is willing to do so, you can use "make-up time requests." Prior to working over 8 hours in a day, the employee submits a written request to make up hours that otherwise would be missed by working extra hours in a work day within the same work week. It must be voluntary on the employee's part, in writing, and the hours cannot exceed 11 in one day.