The commissioner may only approve a request to use a permitted accounting practice for up to one calendar year. All permitted practices will expire no later than December 31. An insurer wishing to continue the permitted practice must file a new permitted practice request with the commissioner. Permitted accounting practices that were previously approved by the commissioner that remain in effect as of the effective date of this rule which do not have a specific termination date will expire upon any change of control of the insurer or December 31, 2010, whichever occurs first.