Do my dependents NEED SS #'s for me to file them under my taxes?

New York

My question is: Regarding filing my federal taxes. My wife and step-daughter do NOT YET have their social security numbers because their adjustments of status applications are being processed by the US-INS presently.
We were married in 2002 and they are both living with me and dependent on me. Since they are bonafide dependents, am I able to put them on my taxes? or do I HAVE TO wait until they are issued their social security numbers?
Any help will be greatly appreciated.

You need SSNs or ITINs to claim them as dependents.

Thank you

Thank you very much for the information. I managed to get out to the local IRS field office and submit the W-7's for the ITIN's. They say it will take aproximately 4-6 weeks, so I should get the numbers and make the April 16 deadline. Also, I passed this info onto my accountant (who probably should've known this answer.
Thanks again for your help.

After 30 days, call the number listed in the instructions to ask for the number.