Overview
- The main window runs from January 13 to February 27 for second and third preschool, first grade of primary, first grade of secondary, and the first cycle in CAM programs.
- First-year preschool follows a separate window from May 19 to May 29, with requirements published on May 13.
- Dates are assigned by the first letter of the paternal surname, starting with A–B on January 13–15 and finishing with U–Z on February 23–27.
- If the suggested date is missed, registration may be completed on any other day within the period, and a later extemporaneous call will allocate remaining places except for CAM.
- SEP and the AEFCM describe pre-enrollment as a mandatory step under national education policy, with the official process hosted at www.aefcm.gob.mx/preinscripciones-gobmx/.