No by-law nor any change in the by-laws shall become effective until it shall have been submitted in writing to the commissioner and he shall either have approved it in writing, or have failed to take any action thereon for a period of 30 days after it shall have been submitted to him. Approval shall not be withheld by the commissioner unless a proposed by-law or any change in the by-laws is in conflict with the provisions of this act.
N.J.S. § 17:12B-39