All incidents resulting in fatal heart attacks ______.

Fatal heart attacks that occur in the workplace are subject to the Occupational Safety and Health Administration (OSHA) reporting requirements. According to OSHA regulations, employers are mandated to report any work-related fatalities, which includes heart attacks if they can be linked to workplace conditions or incidents. This ensures that there is oversight regarding the safety of the work environment and adherence to necessary safety standards. Reporting such incidents allows OSHA to investigate potential hazards that may contribute to these events, enhancing preventative measures and improving workplace safety overall.

The other options do not align with statutory requirements or best practices. While documenting internally and investigating by management are good practices, they do not take precedence over the legal obligation to report to OSHA. Overlooking such incidents would not meet compliance standards and could lead to penalties for the employer.