Enrollment and Registration

ENROLLMENT

New students to MBUSD only: Use the button below to access Aeries Online Enrollment.

REGISTRATION
All current, new, and returning students: Use the button below to access the Aeries Parent Data Confirmation page to complete the annual registration process.

Aeries Parent Data Confirmation for the 2026-2027 school year is scheduled to begin on July 22, 2026. Please note this information is subject to change and may be updated at any time.

TK/Kindergarten Information Day is scheduled for Saturday, January 10, 2026. Location and time details will be posted here soon.

Click here for Transitional Kindergarten (TK) Information

Transitional Kindergarten

Students are eligible to be enrolled in TK if they turn 4 years old by September 1, 2026.

Parents' Guide to Immunizations Required for School Entry (PDF)

Please note the information in this document is subject to change and may be updated at any time to reflect new guidelines based on state and local legislation.

Toilet Training Resources

Click here for more information about preparing your child to attend Transitional Kindergarten.

Click here for the pdf fillable version of the New Student Information Form.

Please contact your school of residence for information about Transitional Kindergarten enrollment and registration.

Click here for Kindergarten Information

MBUSD will work with families to determine the best grade-level placement for students matriculating from a five-year-old pre-school or Transitional Kindergarten (TK) program (students entering MBUSD at age five or six who have not yet completed a Kindergarten program). Kindergarten placement will be allowed for these students.

Any student, regardless of age, who has completed Kindergarten will be enrolled in Grade 1, unless an appropriately documented Kindergarten Continuation Meeting has resulted in a recommendation for another year of kindergarten. This practice will be updated to align with any State of California attendance regulation changes.

Kindergarten Enrollment and Registration Flyer| PDF Document (This document is under revision.)
2026-2027 Kindergarten online enrollment for MB residents is scheduled to begin on Monday, January 12, 2026 at 6 am. Please note this information is subject to change and may be updated at any time.

Parents' Guide to Immunizations Required for School Entry (PDF)
Please note the information in this document is subject to change and may be updated at any time to reflect new guidelines based on state and local legislation.

Click here for the pdf fillable version of the New Student Information Form.

Please contact your school of residence for information about Kindergarten enrollment and registration.

Click here for First Grade - Fifth Grade New Elementary Student Information

First Grade - Fifth Grade New Elementary Student Enrollment and Registration Flyer| PDF Document (This document is under revision.)

2026-2027 new elementary student online enrollment for MB residents is scheduled to begin on Monday, January 12, 2026 at 6 am. Please note this information is subject to change and may be updated at any time.

Parents' Guide to Immunizations Required for School Entry (PDF)
Please note the information in this document is subject to change and may be updated at any time to reflect new guidelines based on state and local legislation.

Click here for the pdf fillable version of the New Student Information Form.

Please contact your school of residence for information about elementary enrollment and registration. Currently enrolled students do not need to complete enrollment again and will receive information about registration in late July/early August.

Click here for Kindergarten and First Grade Admittance Information

Minimum age for admittance to Kindergarten and First Grade

In California, a child shall be admitted to a school district’s kindergarten program at the beginning of a school year, or later in the same year if the child will have his or her fifth birthday on or before September 1 (EC48000[a]). This applies to kindergarten programs only. A child is eligible to be enrolled in Transitional Kindergarten (TK) if the child will have his or her fourth birthday by September 1. For first grade enrollment, California law requires a child to be six years old on or before September 1 (EC Section 48010). School is mandatory for six-year-old students; parents and guardians must enroll their children in school once they reach the age of six (EC Section 48200).

MBUSD will work with families to determine the best grade-level placement for students matriculating from a five-year-old pre-school or Transitional Kindergarten (TK) program (students entering MBUSD at age five or six who have not yet completed a Kindergarten program). Kindergarten placement will be allowed for these students.

Any student, regardless of age, who has completed Kindergarten will be enrolled in Grade 1, unless an appropriately documented Kindergarten Continuation Meeting has resulted in a recommendation for another year of kindergarten. This practice will be updated to align with any State of California attendance regulation changes.

Click here for Middle School Student Information

Click here for High School Student Information

Click here for Grade Level Placement Criteria

Attendance Permits
Click here for information about inter-district attendance permits or permit releases.

Preschool Enrollment - Application for Preschool Waiting List

MBUSD Grade Level Placement Criteria for 2026-2027

New Family Handbook 2025 -26

Click here to learn about MBUSD Grandchild Attendance Permit Policy