Attached files
file | filename |
---|---|
EX-31.2 - EX-31.2 - HEARTLAND EXPRESS INC | exhibit3122019q4.htm |
EX-32.1 - EX-32.1 - HEARTLAND EXPRESS INC | exhibit3212019q4.htm |
EX-32 - EX-32 - HEARTLAND EXPRESS INC | exhibit3222019q4.htm |
EX-31.1 - EX-31.1 - HEARTLAND EXPRESS INC | exhibit3112019q4.htm |
EX-21 - EX-21 - HEARTLAND EXPRESS INC | exhibit212019q4.htm |
EX-4.1 - EX-4.1 - HEARTLAND EXPRESS INC | exhibit412019q4.htm |
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