This document summarizes MSHA and OSHA regulations regarding hazard communication standards. It states that MSHA will now consider mine operators in compliance with MSHA's HazCom standards if they comply with OSHA's revised Hazard Communication Standard. It provides an overview of OSHA's changes to align with the global standard, including new training requirements and effective dates. Mine operators need to update their written hazard communication programs and training to reflect the changes. While MSHA and OSHA standards have some differences, following OSHA's revised standard will generally ensure compliance with MSHA as well.