The Government-sponsored "Recycle Now"
has defined loads
of signs to identify locations where all sorts of materials
lodged for recycling. Their website is here, and the
symbols are available for download here
(you may have to register).
Their focus is on the recycling of consumer or after-market scrap.
These symbols are intended to show recyclability of a product and
other environmental care information. As always, tell us if you think there is another symbol we should include here.