An agency shall provide relocation assistance and shall make all of the payments required by Chapter 16 (commencing with Section 7260) of Division 7 of Title 1 of the Government Code, including the making of such payments financed by the federal government.

This section shall not be construed to limit any other authority which an agency may have to make other relocation assistance payments, or to make any relocation assistance payment in an amount which exceeds the maximum amount for such payment authorized by Chapter 16 (commencing with Section 7260) of Division 7 of Title 1 of the Government Code.