California Code, Education Code - EDC § 56445

(a) Prior to transitioning an individual with exceptional needs from a preschool program to kindergarten, or first grade as the case may be, an appropriate reassessment of the individual shall be conducted pursuant to Article 2 (commencing with Section 56320) of Chapter 4 to determine if the individual is still in need of special education and services.

(b) It is the intent of the Legislature that gains made in the special education program for individuals who received special education and services, in accordance with this chapter, are not lost by too rapid a removal of individualized programs and supports for these individuals.

(c) As part of the transitioning process, a means of monitoring continued success of the child shall be identified by the individualized education program team for those children of kindergarten or first grade equivalency who are determined to be eligible for less intensive special education programs.

(d) As part of the exit process from special education, the present performance levels and learning style shall be noted by the individualized education program team. This information shall be made available to the assigned regular education teacher upon the child's enrollment in kindergarten or first grade as the case may be.