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Australia has lowered its travel advice warnings for several Middle Eastern countries following the signing of a ceasefire agreement between the US and Iran this week.

Nationals frontbencher Bridget McKenzie has suggested the Coalition could support extending a cut to the heavy vehicle road user charge.

Labor halved the fuel excise and reduced the heavy vehicle charge to zero for six months after the outbreak of war in the Middle East.

But that is set to expire at the end of June, with the government considering whether to extend that in light of the US-Iran ceasefire deal.

Speaking to Channel Seven, McKenzie has suggested the government keep the cut in the heavy vehicle charge, but hasn't said whether the Coalition would support extending the fuel excise cut.

"The trucking industry has put a sensible suggestion on the table, and the government should look at it," McKenzie says.