The U.S. Small Business Administration (SBA) is revising the regulations for the Small Business Investment Company (SBIC) program to expand permitted investments in passive businesses and provide further clarification with regard to investments in such businesses. SBICs are generally prohibited from investing in passive businesses under the Small Business Investment Act of 1958, as amended (Act). SBIC program regulations provide for two exceptions that allow an SBIC to structure an investment utilizing a passive small business as a pass-through. The first exception provides conditions under which an SBIC may structure an investment through up to two levels of passive entities to make an investment in a non-passive business that is a subsidiary of the passive business directly financed by the SBIC. The second exception, prior to this final rule, enabled a partnership SBIC, with SBA's prior approval, to provide financing to a small business through a passive, wholly-owned C corporation (commonly known as a blocker corporation), but only if a direct financing would cause the SBIC's investors to incur Unrelated Business Taxable Income (UBTI). This final rule clarifies several aspects of the first exception and in the second exception eliminates the prior approval requirement and expands the purposes for which a blocker corporation may be formed. The final rule also adds new reporting and other requirements for passive investments to help protect SBA's financial interests and ensure adequate oversight and makes minor technical amendments. Finally, this rule makes a conforming change to the regulations regarding the amount of leverage available to SBICs under common control. This change is necessary for consistency with the Consolidated Appropriations Act, 2016, which increased the maximum amount of such leverage to $350 million.