I found this info on the errornet. Maybe it will help.
Obtaining an Assault Weapons Permit for Active Duty Military Personnel.
Any person on active military duty with current, valid permanent change of station orders for duty in the State of California may apply for a DOJ Assault Weapon Permit for personal possession and or transportation of personally owned assualt weapons(s).
Does not apply for those under the age of 18.
Requirements:
Completed Application for Assault Weapon Permit for Military Personnel
$73 fee (postal money order)
Two complete ten-print fingerprint cards (your security unit can often do these)
A copy of your PCS orders
The application has the following information:
Applicant’s military rank
Full name
Mailing Address
Physical residential address (if different)
Telephone number
Branch of service
Name and address of military base or unit assignment
Military ID number
Make, model, and serial number of each assualt weapon to be permitted
Applicant’s signature
They called me within about four days of mailing and said that they were processing my permit. They left a message “the Department of Justice’s Firearm Division would like to talk to you.” - just what you want to hear on your answering machine!
It took about two weeks total to receive my permit. You can fill out a second sheet of paper if you have more weapons than the four spaces given on the permit.
Permits are valid for one year from issue or until the member terminates PCS orders in California, which ever comes first. Renewals are required each year and are free. They send a letter in the mail reminding you.
Department of Justice
Firearms Division
PO Box 820200
Sacramento, CA 94203-0200