Cal. Education Code § 35735.10

For the purpose of determining funding pursuant to subparagraph (D) of paragraph (1) of subdivision (e) of Section 42238.03, the following shall apply to districts affected by reorganization pursuant to Section 35511 or a lapse pursuant to Section 35780.1: (a) A new district shall receive the same amount of the 2012–13 fiscal year funding allowance provided for qualifying necessary small elementary schools and necessary small high schools received by each former district in the fiscal year immediately preceding the fiscal year in which the reorganization is to become effective if the former district has been wholly included in the new district. (b) An acquiring district shall retain the same amount as the 2012–13 fiscal year funding allowance provided for its qualifying necessary small elementary schools and necessary small high schools in the fiscal year immediately preceding the fiscal year in which the reorganization is to become effective and any such allowance provided to a former district if the former district has been wholly included in the acquiring district. (c) A divided district shall retain the same amount of the 2012–13 fiscal year funding allowance provided for its qualifying necessary small elementary schools and necessary small high schools in the fiscal year immediately preceding the fiscal year in which the reorganization is to become effective. (d) If the reorganization includes a former district that has been wholly included in more than one new or acquiring district, the necessary small school allowance for minimum state aid shall be determined pursuant to subdivision (c) of Section 35735.