; and (C) provides adequate training for mentors and qualified instructors on providing a safe work and training environment. (2) The program records and maintains all records concerning the program as may be required by the Secretary, the registration agency of the program, or any other applicable law, including records required under title 38, United States Code, in order for veterans and other individuals eligible for educational assistance under such title to use such assistance for enrollment in the program. (3) The program provides all individuals with an equal opportunity to participate in the program as described in subparagraphs (B) and (C) of section 111(b)(7). (4) The program awards a certificate of completion in recognition of successful completion of the program, evidenced by an appropriate certificate issued by the registration agency, and in the case of apprenticeships and youth apprenticeships, prepares a program participant to obtain a recognized postsecondary credential. (5) The program provides that an individual who is to become a program participant under the program enters into a written apprenticeship agreement described in section 123 with the sponsor of the program. (6) The ratio of program participants to supervisors (such as journeyworkers, mentors, or on-the-job learning instructors, as applicable) for the apprenticeable occupation, that are based on evidence-based and evidence-informed best practices for supervision, training, safety, and continuity of employment, throughout the work processes of the program, job site, department, or plant, appropriate for the degree of hazard in different occupations, and provisions in collective bargaining agreements, as applicable, except if such ratios are expressly prohibited by the collective bargaining agreements. 123. Apprenticeship agreements (a) In general To ensure the standards described in section 122 are applied to programs under the national apprenticeship system, the Administrator shall require a sponsor to develop an apprenticeship