MO HB430

Repeals and re-enacts sections 287.957 and 287.975 of Missouri law relating to employer paid medical costs in workers' compensation insurance experience rating.

Changes the threshold for experience modification adjustments from a fixed amount of $1,000 to 20 percent of the current split point of primary and excess losses under the uniform experience rating plan.

Maintains the prohibition on experience modification adjustments when an employer pays all medical costs, there is no lost time (except first three days or less), and no claim is filed.

Requires the advisory organization to file all pure premium rates, rating rules, and modifications with the director within 30 days of distribution to members.

Establishes that the formula for equalizing premium rates for construction group employers shall be the formula in effect on January 1, 1999, and allows employers to submit payroll information from any calendar quarter of the prior year for premium credit calculations.