4 Meaning of “employee”, “employer” etc.
For the purposes of the relevant statutory provisions a person provided with relevant training shall be treated as being the employee of the person whose undertaking (whether carried on by him for profit or not) is for the time being the immediate provider to that person of the training; and “employee”, “worker”, “employer” and related expressions in those provisions shall be construed accordingly.
Reg. 4 in force at 8.8.1990, see reg. 1