(a)Purpose of section. Sections 35.290 through 35.298 govern Indoor Radon Grants to States (as defined in section 3 of the Toxic Substances Control Act, which include territories and the District of Columbia) under section 306 of the Toxic Substances Control Act.(b)Purpose of program.(1) State Indoor Radon Grants are awarded to assist States with the development and implementation of programs that assess and mitigate radon and that aim at reducing radon health risks. State Indoor Radon Grant funds may be used for the following eligible activities:(i) Survey of radon levels, including special surveys of geographic areas or classes of buildings (such as public buildings, school buildings, high-risk residential construction types);(ii) Development of public information and education materials concerning radon assessment, mitigation, and control programs;(iii) Implementation of programs to control radon on existing and new structures;(iv) Purchase by the State of radon measurement equipment and devices;(v) Purchase and maintenance of analytical equipment connected to radon measurement and analysis, including costs of calibration of such equipment;(vi) Payment of costs of EPA-approved training programs related to radon for permanent State or local employees;(vii) Payment of general overhead and program administration costs in accordance with § 35.298(d) ;(viii) Development of a data storage and management system for information concerning radon occurrence, levels, and programs;(ix) Payment of costs of demonstration of radon mitigation methods and technologies as approved by EPA, including State participation in the EPA Home Evaluation Program; and(x) A toll-free radon hotline to provide information and technical assistance.(2) States may use grant funds to assist local governments in implementation of activities eligible for assistance under paragraphs (b)(1)(ii), (iii), and (vi) of this section.(3) In implementing paragraphs (b)(1)(iv) and (ix) of this section, a State should make every effort, consistent with the goals and successful operation of the State radon program, to give preference to low-income persons.(4) Funds appropriated for section 306 may not be used to cover the costs of federal proficiency rating programs under section 305(a)(2) of the Act. Funds appropriated for section 306 and grants awarded under section 306 may be used to cover the costs of State proficiency rating programs.