Charge registration period clarified: amendment requires explicit reference to the thirty-day registration timeframe for compliance. The provision substitutes the phrase 'register the charge within the period specified in section 77' with the explicit wording 'register the charge within the period of thirty days referred to in sub-section (1) of section 77', thereby clarifying that the applicable registration obligation is the thirty-day timeframe set out in subsection (1) of section 77.