Certifying Board for Dietary Manager website:

https://www.cbdmonline.org/

Dietary Manager handbook 

https://nutrition.santarosa.edu/DM_Handbook

Association of Nutrition and Foodservice Professionals

https://www.anfponline.org/

Academy of Nutrition and Dietetics

http://www.eatright.org

California Dietetic Association

http://www.dietitian.org