With the advent of carbon tax in Australia transport operators need to keep monitoring and reducing their energy consumption.
They must measure fuel and other energy used and plan how to reduce it. Buying Euro 5 trucks is an obvious saving and even other small reductions are important and count just from the point of view of the business regardless of the legislation and when it applies.
Look elsewhere for best practice in energy consumption reduction and copy it where you can.
What small, incremental savings are possible? Slightly lower energy consuming cars for staff?
What other recommendations do people have?