This will be a busy week for the leaders of the nation’s trucking industry who will be meeting at American Trucking Associations’ annual Management Conference & Exhibition.

The Environmental Protection Agency has filed a motion to dismiss a federal lawsuit filed by Navistar Inc., rejecting the engine maker’s claims that the agency must test selective catalytic reduction technology engines with the SCR system turned off, running without diesel exhaust fluid, and running with water instead of diesel exhaust fluid.

Xata Corp. Thursday reported a fiscal third-quarter loss of $500,000, or 4 cents per share, compared with net income of $600,000, or 2 cents, a year ago.

PHOENIX — American Trucking Associations wants to reinvigorate its operational councils, the group’s president said at industry meetings here, and especially in the field of technology, where significant developments have changed freight transportation dramatically.

Rob Abbott, American Trucking Associations’ vice president of safety policy, has been named to the Federal Motor Carrier Safety Administration’s motor carrier safety advisory committee, FMCSA said Friday.

American Trucking Associations said it has hired Caroline Decker as its new vice president of legislative affairs.

The Environmental Protection Agency last week updated its guidance for certification of heavy-duty truck engines using selective catalytic reduction to reduce emissions, rejecting claims made last year by truck maker Navistar Inc. that the technology can be easily defeated.

American Trucking Associations joined more than 30 groups in asking a congressional panel to repeal a tax provision that would require governments to withhold 3% of their contract payments to businesses.

WASHINGTON — American Trucking Associations late last month moved its legislative affairs staff into its newly renovated and expanded office complex on Capitol Hill.

Transportation software firm Xata Corp. said it lost $781,000, or 7 cents per share, in its fiscal second quarter, compared with a loss of $2.1 million, or 23 cents, a year earlier.