has demonstrated the minimum degree of appropriate technical knowledge and skills specific to radon mitigation in conformance with the requirements of— (i) a certification standard promulgated by the American National Standards Institute or International Organization for Standardization, (ii) a State, local or other governmental licensing (or equivalent) program, or (iii) any other recognized or accredited certification process as determined by the Secretary. (C) Radon The term radon has the meaning given the term in section 302 of the Toxic Substances Control Act ( 15 U.S.C. 2662 ). (f) Asbestos abatement services (1) In general Subject to paragraph (2), the term asbestos abatement services means— (A) any asbestos abatement measures performed by an accredited asbestos abatement contractor or supervisor, (B) any interim asbestos control measures to reduce exposure or likely exposure to asbestos hazards, but only if such measures are evaluated and completed by an accredited asbestos abatement contractor or supervisor using accepted methods, are conducted by an accredited asbestos abatement contractor or supervisor, and have an expected useful life of more than 10 years, and (C) any preparation, cleanup, disposal, and clearance testing activities associated with the asbestos abatement measures or interim asbestos control measures which are performed by an accredited asbestos abatement contractor or supervisor, or those working under the supervision of such supervisor. (2) Limitation The term asbestos abatement services shall not include any services to the extent such services are funded by any grant, contract, or otherwise by another person or any governmental agency. (3) Documentation required No credit shall be allowed under subsection (a) with respect to any asbestos abatement services for a certified historic structure for any taxable year unless— (A) after such services are complete, an accredited asbestos inspector provides written documentation to the taxpayer that includes— (i) evidence that the certified