(1) Subject to this Act, a person shall be entitled to invalidity pension where he or she -
(a) is permanently incapable of working in insurable employment or insurable self-employment, and the reason for which incapacity is as a direct result of the person concerned being incapable of work and for no other reason,
(aa) would be available to work in insurable employment or insurable self-employment were it not for this incapacity, and
(b) satisfies the contribution conditions in section 119.
(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 where the person fails without good cause to comply with such requirements as may be specified by the regulations, including but not necessarily limited to:
(a) attending for or submitting to any medical or other examination or treatment;
(b) complyi
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