Pressure treated wood - how to tell?

last month
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Does anyone know if there is a way to tell if wood has been pressure treated? I am buying a home and the deck looks like it's in good condition- maybe 10 years old? - and wanted to find out if the wood has been pressure treated, and if so, if it was treated with CCA or the newer - less toxic treatment. If it is treated with the older CCA treatment, I will probably want to have it removed and will need to take precautions. I read that CCA was phased out in 2003? I am guessing on the age of the deck and the current homeowners don't have know when it was put in.

On the wood - the following is labeled - 165 NeLMA, 2 HT-SGRN 3 1/2 x 3 1/2 5/16 Radius Red Pine. Does this give any indication if pressure treated? Thank you!

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