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12/24/2018 7:53 AM <dir> A20_10 - Data Collection Guidelines
12/24/2018 7:55 AM <dir> A20_20 - SPS Construction and Deviation Reports (as applicable)
12/24/2018 8:01 AM <dir> A20_30 - Special Data Collection Efforts
12/24/2018 8:02 AM <dir> A20_40 - Strategic Highway Research Program LTPP Reports
11/15/2017 9:56 AM 1247698 FHWA-RD-03-088.pdf