(1) Subject to this Act, a person shall be entitled to invalidity pension if -
(a) he is permanently incapable of work, and
(b) he satisfies the contribution conditions in section 96.
(2) The conditions under which a person shall be regarded for the purposes of this section as being permanently incapable of work shall be specified by regulations.
(3) Regulations may provide for disqualifying a person for receiving invalidity pension if he fails without good cause to observe any prescribed rules of behaviour.