For Category 1 shipments, shippers should use TRANSCOM or another commercially available satellite tracking system to track their shipments. 10 CFR 37.79 details the requirements for shipment tracking. The requirements for highway shipments include: • establishing a movement control center that will monitor shipment positions 24 hours a day, seven days a week, and have the ability to communicate immediately, in an emergency, with the appropriate law enforcement agencies; • establishing redundant communications that allow the transport to contact the escort vehicle (when used) and movement control center at all times; and • continuous and active monitoring of shipments by a telemetric position monitoring system or an alternative tracking system reporting to a movement control center. Weather and Road Conditions Shipments should not travel during severe weather conditions or when adverse weather or road conditions make travel hazardous. Severe weather conditions typically encountered in the Midwest include the following storm warnings issued by the National Weather Service:
• dense fog advisory, • tornado warning, • severe thunderstorm warning, • flash flood warning, • river flood warning, and • high wind warning.
• winter storm warning, • heavy snow warning, • blizzard warning, • blowing and drifting snow,
• freezing rain/drizzle, • ice storm warning, • sleet warning,
Adverse weather conditions are those that prompt travel advisories cautioning against any unnecessary travel. Due to the likelihood of severe winter weather resulting in shipment delays,
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