Cal. Government Code § 53331

(a) If the legislative body determines that the public convenience and necessity require any change in the types of authorized public facilities or services which should be financed by an established community facilities district, that the rate or method of apportionment of a special tax should be changed, or that a new special tax should be proposed, the legislative body may adopt a resolution of consideration to alter the types of public facilities or services to be financed by the district, to levy a new special tax or special taxes, or, except as provided in subdivision (b), to alter the rate or method of apportionment of the special tax. Those proceedings may be commenced at any time. Section 53325.6 applies to any types of facilities or services proposed to be financed by the district. (b) The legislative body shall not adopt a resolution of consideration to reduce the rate of any special tax or terminate the levy of any special tax if the proceeds of that tax are being utilized to retire any debt incurred pursuant to this chapter unless the legislative body determines that the reduction or termination of that tax would not interfere with the timely retirement of that debt. (c) The resolution of consideration adopted pursuant to subdivision (a) shall contain all of the information required by subdivisions (a) to (e), inclusive, of Section 53334.