For the purpose of providing greater diversity of training or continuity of employment, any apprentice agreement made under this article may in the discretion of the Commissioner be signed by an association of employers or an organization of employees instead of by an individual employer. In such a case, the apprentice agreement shall expressly provide that the association of employers or organization of employees does not assume the obligation of an employer but agrees to use its best endeavors to procure employment and training for such apprentice with one or more employers that will accept full responsibility, as herein provided, for all the terms and conditions of employment and training set forth in the agreement between the apprentice and employer association or employee organization during the period of each such employment. The apprentice agreement in such a case shall also expressly provide for the transfer of the apprentice, subject to the approval of the Commissioner, to such employer or employers as shall sign a written agreement with the apprentice, and if the apprentice is a minor with his parent or guardian, as specified in § 2.2-2050, contracting to employ the apprentice for the whole or a definite part of the total period of apprenticeship under the terms and conditions of employment and training set forth in the agreement entered into between the apprentice and the employer association or employee organization.