5. After section 3 of the Principal Act the following sections are inserted in Part I:
“3A. For the purposes of this Act, a person shall be taken to be competent to practise nursing only if the person—
(a) has sufficient physical capacity, mental capacity and skill to practise nursing; and
(b) has sufficient communication skills for practising nursing, including an adequate command of the English language.
“3B. (1) For the purposes of this Act, a person shall be taken to suffer from an impairment if the person suffers from any physical or mental impairment, disability, condition or disorder which detrimentally affects, or is likely to detrimentally affect, the person's physical or mental capacity to practise nursing.
“(2) For the purposes of subsection (1), habitual drunkenness or addiction to a deleterious drug shall be taken to be a physical or mental disorder.”.