TM 10-8415-209-10 TM 8415-10/2 0/2 b. Chemical Protective Suit (1) Chemical Protective Overgarment (CPOG).  The CPOG is an OD green overgarment consisting of a coat and trousers.  This suit is normally worn over the duty uniform, however, in high temperatures it may be worn over underwear.  In extreme cold weather, the CPOG will be worn under arctic clothing for camouflage. The   CPOG   provides   protection   against   chemical   agent   vapors,   liquid   droplets;   biological   agents;   toxins;   and radioactive alpha and beta particles.  The CPOG is not intended to be decontaminated, reimpregnated, or laundered, and  should  be  properly  discarded  after  exposure  to  chemical  agents  in  accordance  with  FM  3-5/FMFM  11-10. Contact  with  petroleum,  oils  and  lubricants  (POLs)  will  significantly  degrade  protection  provided  by  the  CPOG. Refer to FM 3-4/FMFM I 1-9 for protective capabilities. 1-14