(B) that may be warranted in light of such research. (3) Limitation Until a final rule is issued by the Secretary under section 502(b)(2) of the Robert C. Byrd Mine Safety Protection Act of 2017 , any measurement taken by a direct reading monitor described in paragraph (2) shall not be admissible to establish a violation in an enforcement action under this Act. (4) Report and rulemaking authority (A) Report Not later than 2 years after the date of enactment of the Robert C. Byrd Mine Safety Protection Act of 2017 , the Secretary of Health and Human Services, in consultation with the Secretary of Labor, shall prepare and submit, to the Committee on Education and the Workforce of the House of Representatives and the Committee on Health, Education, Labor, and Pensions of the Senate, a report— (i) regarding whether any direct reading monitor described in paragraph (2)(B) is sufficiently reliable and accurate for the enforcement of the mandatory health or safety standards by the Secretary of Labor under such Act, and whether additional improvement to such direct reading monitor, or additional verification regarding reliability and accuracy, would be needed for enforcement purposes