Accident and dangerous occurrence reporting duties require immediate notice, electronic intimation, and specified time-bound reporting by employers. Notice requirements apply when an accident in an establishment results in death or in bodily injury preventing the injured person from working for forty-eight hours or more. In a death case, the employer must give immediate notice in FORM-XI to the Inspector-cum-Facilitator and communicate electronically and by telephone with specified senior authorities, the police station, and the victim's family members or kin. Where the injury results in the prescribed period of disablement, notice in FORM-XI must be sent electronically within the specified time after completion of forty-eight hours, and if disablement accumulates in more than one spell, reporting follows once the total period reaches the threshold. Dangerous occurrences must also be intimated within twelve hours to the Inspector-cum-Facilitator and the District Magistrate or Sub-divisional Officer, whether or not bodily injury or disability occurs. The provision treats as dangerous occurrences a wide range of events involving bursting, collapse, explosion, fire, leakage, spillage, inrush, overturning, fall from height, failure of machinery or structures, uncontrolled chemical release, and other specified incidents in mines, construction, and industrial settings.