N.H. Rev. Stat. Ann. § 170-G:20

The rights of children in foster care exist within the context of the reasonable and prudent parent standard defined in 42 U.S.C. section 675(10). This means that foster parents, caretakers, and department staff must make careful and sensible decisions that maintain the health, safety, and best interests of a child while at the same time encouraging the emotional and developmental growth of the child. The rights and privileges established in this section are to be applied in accordance with the reasonable and prudent parent standard, in a context appropriate to the age and developmental level of the child, and in recognition of the fact that some of these privileges may need to be earned.