Every apprentice agreement under this chapter shall be approved by the local joint apprenticeship committee or the parties to a collective bargaining agreement or, subject to review by the council, by the administrator where there is no collective bargaining agreement or joint committee, a copy of which shall be filed with the California Apprenticeship Council. Every apprentice agreement shall be signed by the employer, or his or her agent, or by a program sponsor, as provided in Section 3080, and by the apprentice, and if the apprentice is a minor, by the minor’s parent or guardian. Where a minor enters into an apprentice agreement under this chapter for a period of training extending into his or her majority, the apprentice agreement shall likewise be binding for such a period as may be covered during the apprentice’s majority.