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I did mine geez 10 years ago probably now. I bleached it before I put it in then had to wait like a month or something for the bleach to gas out. Do a Internet search for driftwood bleach.
I also boiled smaller pieces for 30mins or so and had no issues.
I use local pieces in my tanks. I rinse it well with the pressure nozzle on the garden hose and leave it out in the sun to dry for a day or two and into the tank. I pick up some rocks too. I usually need something heavy to weigh down the piece.
As long as there aren't laws against doing this, I'd say, have fun.