Section 1002.67(3)(c), F.S., Performance Standards; Curricula and Accountability, requires that:

• If the kindergarten readiness rate of a private prekindergarten provider or public school falls below the minimum rate adopted by the State Board of Education as satisfactory under s. 1002.69(6), the early learning coalition or school district, as applicable, shall require the provider or school to submit an improvement plan for approval by the coalition or school district, as applicable, and to implement the plan.
• If a private prekindergarten provider or public school fails to meet the minimum rate adopted by the State Board of Education as satisfactory under s. 1002.69(6) for 2 consecutive years, the early learning coalition or school district, as applicable, shall place the provider or school on probation and must require the provider or school to take certain corrective actions, including the use of a curriculum approved by the department under paragraph (2)(c).
• A private prekindergarten provider or public school that is placed on probation must continue the corrective actions required under subparagraph 2., including the use of a curriculum approved by the department, until the provider or school meets the minimum rate adopted by the State Board of Education as satisfactory under s. 1002.69(6).
• If a private prekindergarten provider or public school remains on probation for 2 consecutive years and fails to meet the minimum rate adopted by the State Board of Education as satisfactory under s. 1002.69(6), the Agency for Workforce Innovation shall require the early learning coalition or the Department of Education shall require the school district, as applicable, to remove the provider or school from eligibility to deliver the Voluntary Prekindergarten Education Program and receive state funds for the program.

Follow the link to the DOE website that describes the improvement process for VPK providers in detail:
http://www.myfloridaeducation.com/
earlylearning/improvepro.html.