N.H. Rev. Stat. § 130-A:5-c
All parents or legal guardians shall have their children who are residing in this state tested for blood lead level at the ages of one and 2. A child shall be exempt from this required blood lead level testing if a parent or legal guardian objects to such testing and provides a statement to such effect or if a physician licensed under RSA 329, or a physician exempted under RSA 329:21, III, certifies that blood lead level testing may be detrimental to the child's health. The latter exemption shall exist only for the length of time that, in the opinion of the physician, testing would be detrimental to the child. The commissioner shall develop an opt out form for the purposes of this section and shall make such form available to health care facilities. The form shall include simple opt out language in a font and size easily readable by the average adult reader.
RSA 130-A:5-c
2018, 4:4, eff. Apr. 9, 2018.