(a) be in possession of an assessment of the risks to safety and health at work, including those facing groups of workers exposed to particular risks;
(b) decide on the protective measures to be taken and, if necessary, the protective equipment to be used;
(c) keep a list of occupational accidents resulting in a worker being unfit for work for more than three working days;
(d) draw up, for the responsible authorities and in accordance with national laws and/or practices, reports on occupational accidents suffered by his workers.
2. Member States shall define, in the light of the nature of the activities and size of the undertakings, the obligations to be met by the different categories of undertakings in respect of the drawing-up of the documents provided for in paragraph 1(a) and (b) and when preparing the documents provided for in paragraph 1(c) and (d).