SPRINGFIELD, Ill. (CBS) — As of Jan. 1, large trucks will be allowed to go the same speed as all other vehicles in all parts of the state – not just some parts.

As WBBM Newsradio’s Alex Degman reports, state Sen. John Sullivan (D-Rushville) sponsored the original measure to allow trucks to drive 65 mph on rural interstate highways two years ago.

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But he forgot to include four-lane-or-more divided highways without an interstate designation. Sullivan says this measure had no problem passing, unlike its predecessor.

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LISTEN: WBBM Newsradio’s Alex Degman reports

“There was more support for that than there was on the original legislation,” he says. “I think what that says is that my colleagues, I think, saw the effect that the uniform speed limit has. This measure passed with huge bipartisan support in both chambers.”

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Large trucks, and all other vehicles for that matter, must still travel no faster than 55 mph on interstate highways in Cook County surrounding counties.