The agency posting the data should assert that it has performed certain quality gates/checks on the datasets it is publishing.
I just downloaded one dataset provided as a spreadsheet and one of the columns is:
Either that is a weird term or it is an error and meant to say "Contractor". Looking at the data (which is a bunch of acronyms) it is probably the latter.
Did whoever published the dataset check the metadata?
Did they insure all definitions were published?
Have the data values been profiled?
If any columns are codes, have those been published?
Have constraints on values been published?
Are business rules on the values published?
On the catalog entry their should be a data quality controls checklist that is completed by the submitter before publishing the data.
That checklist should correspond to the Agency internal governance procedures.