The specific Department of Health and Human Services (HHS) Regulations that apply to research with children are known as:
Subpart B: Additional Protections for Children Involved as Subjects in Research
Subpart A: The Common Rule
Subpart D: Additional Protections for Children Involved as Subjects in Research
Subpart C: Protections for Children in Research
Answer: Subpart D: Additional Protections for Children Involved as Subjects in Research