Requires employers to include an opioid antagonist where first aid kits are required by federal law

This bill requires private employers who must provide first aid kits under federal law to include an opioid antagonist (like naloxone) in those kits. It directly affects businesses in sectors covered by federal workplace safety rules, such as construction or manufacturing, but excludes government agencies. The key provision mandates adding this life-saving medication to existing first aid supplies for treating potential opioid overdoses among injured employees. The bill does not create new first aid requirements but specifies that opioid antagonists must be part of kits already mandated by federal regulations.