(1) Regulations may provide for disqualifying a person for receiving injury benefit or disablement benefit for any period not exceeding 9 weeks, or for suspending proceedings on any claim for, or on any payment of, injury benefit or disablement benefit, if the person fails without good cause -
(a) to submit himself from time to time to medical examination for the purpose of determining the effect of the relevant accident, whether the accident has resulted in a loss of faculty, at what degree the extent of disablement resulting from a loss of faculty is to be assessed and what period is to be taken into account by the assessment, or the treatment appropriate to the relevant injury or loss of faculty,
(b) to submit himself from time to time to appropriate medical treatment for the relevant injury or loss of faculty,
(c) to attend at such places and times as may be required for the purposes of the said medical examination or treatment, or
(d) to observe any prescribed rules of behavi