For the purposes of section 10(1) of the Act, the following are prescribed dose limits that apply to the public exposure of a person to ionising radiation while a radiation practice is being carried out:

(a) the average of the annual total effective doses for the person, over a 5-year period, must not be more than one millisievert a year;

(b) the equivalent dose for each lens of the person's eyes must not be more than 15 millisieverts in any one year;

(c) the equivalent dose for a square centimetre of the person's skin must not be more than 50 millisieverts in any one year.