Ind. Code § 22-4-22-1
The department shall enter into arrangements with the appropriate agencies of other states or jurisdictions or the United States of America whereby individuals performing services in this and other states or jurisdictions for a single employing unit under circumstances not specifically provided for in IC 22-4-8-2(b), or under similar provisions in the unemployment compensation laws of such other states or jurisdictions, shall be deemed to be employment performed entirely within this state or within one (1) of such other states or jurisdictions, and whereby potential rights to benefits accumulated under the unemployment compensation laws of several states or jurisdictions, or under such a law of the United States of America, or both, may constitute the basis for the payment of benefits through a single appropriate agency under the terms which the department finds will be fair and reasonable to all affected interests and will not result in substantial loss to the fund.
IC 22-4-22-1