California
Government Code – GOV § 29950
Any county may incur a bonded indebtedness for any of the following purposes.
(a) To acquire any bonds:
(1) Issued by the county.
(2) Issued by or for any district in the county.
(3) Issued for street work or other public improvements of any kind or character in the county under any act of the Legislature providing for the performance of street work or any other public improvements.
(b) To represent or be secured by assessments levied for such work or improvements, including any bonds issued under the Road District Improvement Act of 1907, the Acquisition and Improvement Act of 1925, and the Street Opening Bond Act of 1921.