s 3 General duties of employers and self-employed to persons other than their employees.
(1) It shall be the duty of every employer to conduct his undertaking in such a way as to ensure, so far as is reasonably practicable, that persons not in his employment who may be affected thereby are not thereby exposed to risks to their health or safety. (2) It shall be the duty of every self-employed person who conducts an undertaking of a prescribed description to conduct the undertaking in such a way as to ensure, so far as is reasonably practicable, that he and other persons (not being his employees) who may be affected thereby are not thereby exposed to risks to their health or safety. (2A) A description of undertaking included in regulations under subsection (2) may be framed by reference to— (a) the type of activities carried out by the undertaking, where those activities are carried out or any other feature of the undertaking; (b) whether persons who may be affected by the conduct of the undertaking, other than the self-employed person (or his employees), may thereby be exposed to risks to their health or safety. (3) In such cases as may be prescribed, it shall be the duty of every employer and every self-employed person, in the prescribed circumstances and in the prescribed manner, to give to persons (not being his employees) who may be affected by the way in which he conducts his undertaking the prescribed information about such aspects of the way in which he conducts his undertaking as might affect their health or safety.