I believe it's a state-by-state requirement. In the pic from the manual you posted, the "toggle" switch on the right is the rear defogger control; it just isn't labeled. You can see the defogger icon with "REAR" written above it.
If you want more specifics, check page 248 of the manual; there's plenty of detail there. Turning on the rears also activates the side mirror defoggers - unfortunately there's no wiper defrosters.