California Code
ARTICLE 2 - Creation of Districts
Section 65061.4.

65061.4. A district shall not transact any business or exercise any of its powers under this chapter if two-thirds of the cities and counties within the district are participating in regional planning pursuant to a joint powers agreement under Chapter 5 (commencing with Section 6500) of Division 7 of Title 1 of the Government Code.

(Added by Stats. 1963, Ch. 1811.)