MENTOR has developed a list of National Mentoring Standards that enable mentoring programs to address the needs of mentees, mentors, and their families. 
https://www.mentoring.org/ 

Elements of Effective Practice for Mentoring™
Fourth Edition

"MENTOR’s cornerstone publication, the Elements of Effective Practice for Mentoring™, details research-informed and practitioner-approved Standards for creating and sustaining quality youth mentoring programs and consequently, impactful mentoring relationships. The Fourth Edition, released in September 2015, reflects the most up-to-date research, best practices, and current thinking in the field of mentoring.

The six evidence-based Standards are intended to be applicable across almost every type of youth mentoring program.  Each Standard includes Benchmarks to ensure the safety and effectiveness of mentoring relationships, as well as Enhancements that may be promising, innovative, and useful for programs.  Additionally, the Program Planning and Management section offers recommendations for designing, building, and strengthening mentoring programs and services.

In addition to the substantive content updates, this edition of the Elements has a vibrant new design full of color and images of mentors and mentees provided by our Mentoring Affiliates.  It offers a sneak peek of exciting branding updates MENTOR is making in the coming months." - MENTOR