Norfolk Southern Corp.’s third-quarter profit jumped 35%, the railroad said late Tuesday.

Transportation and third-party logistics firm C.H. Robinson Worldwide said its third-quarter profit rose to $93.6 million, or 54 cents a share, from $83.7 million, or 48 cents, a year ago.

Canadian National Railway, Canada’s largest railroad, said its net income rose 14% to C$552 million in the third quarter, or C$1.16 a share, from C$485 million, or 96 cents, a year ago.

The Federal Motor Carrier Safety Administration soon will introduce a program that will list certified medical examiners on a national registry and require all interstate commercial truck drivers to obtain their medical certification from an approved examiner.

Greatwide Logistics Services, a provider of non-asset-based transportation and third-party logistics services, said it will be acquired by a private investor group.

Heavy-duty truck sales in the United States grew for the fourth straight month in September, but year-to-date results remained weak and the recent national economic chaos led to a sharp drop in new orders during September.

Eastern freight railroad CSX Corp. reported its third-quarter net income fell from a year ago, but posted record income from continuing operations for the period.

The national average price of regular gasoline plunged 35 cents in the two weeks ended Friday, to $3.31 a gallon, according to the latest Lundberg Survey of filling stations released Sunday.