No, a student who changes schools for athletic purposes is not eligible to compete in varsity League athletic contest(s) at the school to which he or she moves for at least one calendar year, even if both parents move to the new attendance zone. 

Source: UIL Constitution and Contest Rules Section 443 ©

The minimum penalty will be forfeiture of the contest(s) won by the individual or school team.

Source: UIL Constitution and Contest Rules Section 29 (b) (3)

It is the responsibility of the Campus Principal and/or the Athletic Director to certify that all student-athletes legally reside in their attendance zones. The Campus Principal may designate other staff members to verify the residence of a student-athlete.

No, the residence of a student is determined by the parents’ address or the address of the adoptive parent who adopted the student prior to the student’s first entry into the ninth grade.

Source: UIL Constitution and Contest Rules Section 442 ©

No, if a student’s parents separate (and are not divorced), and if one parent remains in the attendance zone where the student has been attending school, the student’s residence is presumed to be that of the parent who did not move. 

Source: UIL Constitution and Contest Rules Section 442 (g)

Yes, the residence of a student, whose parents are divorced, is presumed to be that of either parent. 

Source: UIL Constitution and Contest Rules Section 442 (f)