Modeling shows that when full implementation of existing regulations such as the acid rain program, the NOx SIP Call, the Tier II standards for cars and trucks, the heavy duty diesel engine standards, and the low sulfur gasoline and diesel fuel rules are taken into account, additional reductions will be needed to bring areas into attainment.
The acid rain program is an existing regulation.
The acid rain program is not a regulation.
Men are trying to carry wood.
The looked at the stream.
Nobody was dancing in the open room.
A man plants strawberries.
Two dogs sleeping next to their owner on his bed.
Boys play in a puddle.