Subaru 2004 Impreza Owner's Manual page 343

Driving tips
! Gross Axle Weight (GAW) and Gross Axle
Weight Rating (GAWR)
Gross Axle Weight
The total weight applied to each axle (GAW) must nev-
er exceed the Gross Axle Weight Rating (GAWR). The
front and rear GAWs can be adjusted by relocating
passengers and luggage inside the vehicle. The front
and rear GAWR are also shown on the certification
plate.
8-32
Certification label
To check both GVWR and GAWR and to confirm that
the total weight and weight distribution are within safe
driving limits, you should have your vehicle and trailer
weighed at a commercial weighing station.
Be sure that all cargo is firmly secured to prevent a
change in weight distribution while driving.