(a) Beginning in the 2022-2023 school year, Tier I children who are 3 or 4 years old may be enrolled in a full-day prekindergarten program under this subtitle.

(b) (1) The proportion of enrolled Tier I children who are 3 years old shall increase annually until all Tier I children who are 3 years old are enrolled in a full-day prekindergarten program.

(2) The proportion of enrolled Tier I children who are 4 years old shall increase annually so that all Tier I children who are 4 years old shall be enrolled in a full-day prekindergarten program.

(c) Beginning in the 2024-2025 school year, Tier II children may be enrolled in a full-day prekindergarten program if space is available to encourage socioeconomic diversity in prekindergarten classrooms.

(d) Priority in expanding prekindergarten slots shall be provided to 3- and 4-year olds who are:

(1) Tier I children;

(2) Children with disabilities, regardless of income;

(3) Homeless youth; and

(4) Children from homes in which English is not the primary spoken language.

(e) The ability of a family to choose the prekindergarten provider in which to enroll their child does not supersede local authority to set school attendance boundaries.