Section 136D.3 - Application of chapter1. This chapter does not apply to a phototherapy device used by or under the supervision of a licensed physician trained in the use of phototherapy devices. A tanning device used by a tanning facility must comply with all applicable federal laws and regulations.2. This chapter shall not supersede or duplicate the authority and programs of any other agency of the state or the United States. To avoid duplication and promote coordination of radiation protection activities, the department may enter into written agreements with other state or federal agencies, with local boards of public health, or with private organizations or individuals, to administer this chapter.90 Acts, ch 1220, §3; 2008 Acts, ch 1058, §10