iptables throttle via tc

Is it possible for iptables to use a TC tbf bucket to throttle a connection?

I have a machine with 2 NICs being used as a gateway for an internal network. I'd like to throttle the rate the internal interface will send packets into the local network that originated off network (Internet). I don't want to use iptables to drop the packets because bandwidth is still consumed by the dropped packets.

Regards,
Casey