The commissioner shall have power, for good cause shown, to curtail the 6-month period specified in subsection B of section 253, and to extend the 15-month period specified in subsection B of section 253 for a period not exceeding 1 month in either case; and to extend the 60-day period specified in section 254 for a period not exceeding 30 days. No extension or curtailment shall be allowed by the commissioner which will result in the lapse of a calendar year without the commencement of an examination pursuant to section 253.
N.J.S. § 17:9A-255