(A) Each insurer writing workers’ compensation insurance shall adopt the most recent loss costs within sixty days after approval of these loss costs. This loss costs adoption must become effective no later than one hundred twenty days after the effective date of the approved loss costs. An insurer must notify the department of its adoption of the most recently approved loss costs by filing a notification on a form and in a manner prescribed by the director or his designee. The notification filing required by this subsection does not constitute a rate filing and is not subject to prior approval.

(B)(1) At least sixty days before using a new multiplier for expenses, assessments, profits, and contingencies, each insurer writing workers’ compensation shall file its multiplier for expenses, assessments, profit, and contingencies and any information relied upon by the insurer to support the multiplier and any modifications to loss costs. A copy of the filing must be provided simultaneously to the consumer advocate.

(2) Filings submitted pursuant to item (1) must be filed on a form and in the manner prescribed by the director or his designee and must contain, at a minimum, the following information: commission expense; other acquisition expense; general expense; expenses associated with recoveries from the Second Injury Fund; guaranty fund assessments; other assessments; premium taxes; miscellaneous taxes, licenses, or fees; a provision for profit and contingencies, and the date of approval of the loss costs to which the multiplier is applied, which must be the most recently approved loss costs.

(3) Filings submitted pursuant to item (1) are subject to approval of the director or his designee and must be reviewed by an actuary employed or retained by the department who is a member of the American Academy of Actuaries or an associate or fellow of the Casualty Actuarial Society.

(4)(a) Within the sixty-day period, if the director or his designee believes the information filed is not complete, the director or his designee shall notify the insurer of additional information to be provided. Within fifteen days of receipt of the notification, the insurer shall provide the requested information or file for a hearing challenging the reasonableness of the director’s or his designee’s request. The burden is on the insurer to justify the denial of the additional information.

(b) Unless a hearing is requested, upon expiration of the sixty-day period or the fifteen-day period, whichever is later, the insurer may use the multiplier for expenses, assessments, profit, and contingencies.