; (2) recommendations necessary to address issues, if any, relating to patient access to care under such Act; and (3) an evaluation of whether the benefit payments authorized under such Act, as amended by this Act, are sufficient to meet the expenses of disabled miners, surviving spouses, dependents, and other family members entitled to receive benefits under the Black Lung Benefits Act. II Standard for respirable dust concentration 201. Standard for respirable dust concentration Section 202 of the Federal Mine Safety and Health Act of 1977 ( 30 U.S.C. 842 ) is amended by adding at the end the following: (i) Reports (1) Retrospective study (A) In general Beginning on August 1, 2021, the Secretary shall conduct a retrospective study to assess the effectiveness of the Mine Safety and Health Administration’s final rule entitled Lowering Miners’ Exposure to Respirable Coal Mine Dust, Including Continuous Personal Dust Monitors (published May 1, 2014; 79 Fed. Reg. 24813), the data regarding the use of continuous personal dust monitors, and the rising number of cases of progressive massive fibrosis (PMF) to determine whether to— (i) lower the applicable standard for respirable dust concentration to protect the health of miners; (ii) lower the 100 μg/m 3 standard for quartz (crystalline silica) in respirable dust to better protect miners’ health; (iii) increase the frequency for taking samples of respirable dust concentration, using continuous personal dust monitors; (iv) modify the engineering controls and work practices used by mine operators to comply with the applicable standard for respirable dust concentration