You have to remove the complete bumper, then the "cover" comes off the "support".
There's another row of rivets along the top, only accessible after the bumper assembly is off the truck.
Remove the grill. There are two 18mm nuts on each side of the frame.
Disconnect both fog light connectors. Remove the bulb socket from each park/turn light.
Under the truck, there is a brace on each corner, and a brace on the bottom to one bolt on each intercooler support.
I remove the corner and bottom braces completely.