Official Mailing Address:
DEPUTY NAVAL INSPECTOR GENERAL FOR MARINE CORPS MATTERS
INSPECTOR GENERAL OF THE MARINE CORPS (Code: IG)
WASHINGTON, DC 20380-1775
For General IGMC questions (NOT INCLUDING IG COMPLAINTS):
ORGMB_IGMC_ADMIN@USMC.MIL
****ALL COMPLAINTS SHOULD STILL BE DIRECTED TO BELOW INFORMATION****
Complaint Hotline:
Hotline: Complaint Hotline Email
Commercial: (703) 604-4526
DSN: 664-4526
Toll Free: (866) 243-3887
TO SUBMIT A COMPLAINT
Fax
Commercial: (703) 604-1006 / 7021
**Mail Delivery. If you elect to mail a compaint, we cannot accept letters without a return address containing the sender's name and street address. A post office box number without the sender's name and street address is not considered a valid return address.