Question: Procedures for Developing Base Year and Future Year Mass and Modeling Inventories for the Heavy-Duty Engine and Vehicle Standards and Highway Diesel Fuel (HDD) Rulemaking.
They wanted to have a consistent system for inventory.

Answer: it is not possible to tell

Question: He nodded his head gravely.
He nodded and was somber.

Answer: it is not possible to tell

Question: That bears out my little idea entirely.
It turns out I was thinking along the wrong lines.

Answer:
no