Ind. Code § 22-3-7-33
(b) Whenever any employee for whose disability or death compensation is payable under this chapter shall, at the time of the last exposure, be exposed in the joint service of two (2) or more employers subject to the compensation provisions of this chapter, the employers shall contribute to the payment of the compensation in proportion to their wage liability to the employees. Nothing in this section shall prevent any reasonable arrangements between employers for a different distribution between themselves of the ultimate burden of compensation.
Formerly: Acts 1937, c.69, s.26; Acts 1957, c.353, s.3. As amended by P.L.224-1985, SEC.4.