CFR › Title 30 › Part 47 › §47.5430 CFR §47.54Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy linkThe operator must make MSDSs accessible to miners during each work shift for each hazardous chemical to which they may be exposed either—(a)At each work area where the hazardous chemical is produced or used, or(b)At an alternative location, provided that the MSDS is readily available to miners in an emergency.