Small Business Reauthorization and Improvements Act of 2006

Small Business Reauthorization and Improvements Act of 2006 - Amends the Small Business Act (the Act) to reauthorize for FY2007-FY2009 certain small business assistance programs of the Small Business Administration (SBA), including a predisaster mitigation program and grants to microloan program intermediaries and technical assistance providers. Makes permanent the Small Business Innovation Research Program. Extends through FY2009 various loan programs for small businesses under the Act and the Small Business Investment Act of 1958, including: (1) general section 7(a) start-up and equity loans; (2) the microloan program; (3) certified development company financing; (4) the Service Corps of Retired Executives program; (5) disaster loan programs; and (6) the new markets venture capital program.

Establishes: (1) the National Preferred Lenders Program; and (2) an Office of Minority Small Business Development.

Authorizes: (1) the SBA Administrator to guarantee participating debentures issued by a licensed company to interim small business funding providers; (2) various development company loan programs, to be known collectively as the local development business loan program; (3) the Administrator to guarantee loans made by private lenders to small businesses located in disaster areas, including loans for disaster relief and reconstruction; (4) funding for veterans' and reservists' small business loan programs; (5) energy loans for small businesses; and (6) assistance for women-owned small businesses.

Increases funding under the Small Business Innovation Research and Small Business Technology Transfer programs. Provides technical and financial assistance for small business innovation.

Native American Small Business Development Act of 2006 - Establishes a Native American small business development program and related pilot programs.

National Small Business Regulatory Assistance Act of 2006 - Establishes a pilot program to assist small businesses in complying with federal and state regulatory requirements.

Small Business Intermediary Lending Pilot Program Act of 2006 - Establishes a small business intermediary lending pilot program.

Establishes a: (1) pilot program for the development of peer learning opportunities for second-stage (high-growth) small businesses; (2) microenterprise technical assistance and capacity building grant program; and (3) minority entrepreneurship and innovation pilot program.