Question

In localities where community consent is the norm, a family member's consent for another individual may be sufficient, as long as community consent is given federal regulations preclude the conduct of phs-funded research community consent to participate in the research study is sufficient and no irb approval is required in addition to the cultural norm, individual informed consent is required

Answer 1

I believe the answer is:  In addition to the cultural norm, individual informed consent is required

Which means that in a community consent society, individuals could not force their decision on others individual no matter what their relation with the individuals (for example, the parents could not force their daughters to marry the men that they do not love.)

Answer 2

In localities where community consent is the norm, a family member's consent for another individual may be sufficient, as long as community consent is given. In addition to the cultural norm, individual informed consent is required.