°®¶¹´«Ã½

img src="/sites/default/files/images/articles/printeditiontag_new.gif" width=120 align=right>As the Environmental Protection Agency’s Oct. 1 deadline for producing cleaner-running diesel truck engines neared, the primary effect was uncertainty in the trucking and truck-manufacturing industries.

Four of the seven heavy-duty diesel engine companies that agreed in 1998 to a settlement with EPA requiring them to sell engines with sharply lower smog-forming emissions had EPA approval by Sept. 26 for at least one model.

Another engine company was still awaiting approval and two no longer sell heavy diesels.