1-2 MOPP 4
Put on additional MOPP gear to reach MOPP 4. Click on the buttons to learn more.
After you have assumed MOPP 4 and performed all the tasks according to the unit standard operating procedure (SOP), perform the following actions:

• Use all means of nuclear, biological, and chemical (NBC) detection to check your surrounding area for the presence of contamination.
• Contact your higher headquarters (HQ) if no contamination is found or if you determine the attack was non-NBC.
• Await further guidance. (The higher HQ contacts all adjacent/attached units to check the status of NBC contamination in their areas. If all units report the absence of contamination, the information is reported up the chain of command).
• Annotate the above actions on your duty log (DA Form 1594).

Secure your MOPP gear
Put on the chemical gloves
Secure over garment jacket