The law reverses the English-only mandate voters passed in 1998.
Voter support for the ballot measure reflects the state's movement toward a multiracial and multiethnic society.
State propositions extend tax on wealthy residents, fund a $9 billion construction bond and repeal English-only instruction law.
If the ballot measure passes, it will likely increase the demand for bilingual teachers, who are already in short supply.
The measure would replace Proposition 227, which severely limits bilingual education.