HORIZON supports “subcontracting” to sister laboratories within the network and also to outside laboratories. HORIZON produces documentation and packaging/shipping labels to support this process. When work is subcontracted, users will see a schedule (unit of work) on the sample record indicating who the subcontractors are and which test requests have been subbed out, along with an expected due date. If the subcontractor returns the results in a standardized format (as an electronic file), the upload of the test results can be fully automated, closing out the subcontractor schedule in the sample record. The final report (if desired) can then be generated automatically, to include all test results regardless of which lab actually conducted the testing. The report can also specify where the testing was conducted.