One of the authors (T.J.) was invited by the AIDS Advisory Group to fo
rm a widely representative committee to recommend ethical guidelines c
oncerning the extent to which HIV testing should receive informed cons
ent. This paper presents and argues for the recommended guidelines. Th
e question is considered with regard to a number of distinct purposes
of HIV testing: the care of a patient; research; blood, tissue and org
an donation; and the protection of third parties, including the health
care worker. We contend that in each case there is no goad reason for
the requirement of informed consent to be significantly waived.