http://xw2k.nist.gov/healthcare/docs/170.302.l_PublicHealthSurveillance_v1.1.pdf is the test for the ability to perform syndromic surveillance. Basically some trigger event like the diagnosis of TB should alert the user to send a report to the CDC or other agency. The report has to structured along the lines of HL7 2.3 or 2.5.1, preferably the latter since the former lacks an implementation guide. The "how" of sending does not appear to be covered. There are mapping guides that describe per syndrome what the content of the HL7 message has to be eg. different ones for TB, Varicella etc.