Every form of insurance document and every rate or other filing lawfully in use immediately prior to the effective date of this act may continue to be so used or be effective until the commissioner otherwise prescribes pursuant to this act; except, that before expiration of one year from and after such effective date neither this act nor the commissioner shall prohibit the use of any such document, rate, or filing because of any power, prohibition, or requirement contained in this act which did not exist under laws in force immediately prior to such effective date, unless expressly otherwise provided in this act.

L.1971, c. 144, s. 17B:35-3