The Overdose Reversal Medication Act directs the Secretary of Labor to create workplace safety standards requiring most employers to keep opioid overdose reversal medications like naloxone on site and train employees to recognize overdose emergencies and administer these drugs. The law requires an interim standard within one year of enactment and a final standard within two years, with the number of doses required based on workplace size, type of occupation, and overdose risk assessment. The bill also expands a federal grant program to help businesses, nonprofits, and community organizations train employees and acquire overdose reversal medications, with priority given to states that have good samaritan laws protecting people who administer these drugs in emergencies. The legislation affects all types of employers across the country and applies to opioid overdose reversal drugs approved by the Food and Drug Administration. While no specific funding amount is mentioned in the text, the bill authorizes expanded grants under the existing Comprehensive Opioid Abuse Grant Program to support training and medication acquisition efforts.