Hard Hat High: How substance abuse endangers construction workers, hurts recruiting and threatens your bottom line (PART 1)
Houston police cut 60 bricks of marijuana out of an excavator in drug bust (PHOTOS)
Marijuana tax could fund transportation improvements in New Jersey
Smugglers stuff millions in marijuana inside construction equipment attachments
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Arrest of excavator operator in Philly building collapse raises questions about marijuana legalization, contractor regulations
Crane certifiers say no to pot, regardless of states’ stance on legalization