Section 30

An insured person who is entitled to invalidity pension or permanent total disablement benefit shall also be entitled to constant-attendance allowance at a *rate as may be prescribed by the

Minister from time to time by regulations, if and so long as he is so severely incapacitated as to constantly require the personal attendance of another person:

Provided that the existence of the degree of incapacity qualifying an insured person for constant-attendance allowance shall be verified by a medical board or Special Medical Board or the appellate medical board or any other authority so authorized by the Minister, in such manner as is prescribed by the regulations.