CFM Courses The Chester County Health Department provides a list of Food Manager Certification Courses that are acceptable for food manager certification in Chester County. Any course that results in a valid "Nationally Accredited Food Manager Protection Certificate is acceptable. The current programs holding ANSI-CFP accreditation include ServSafe, Thomson Prometrics, National Registry of Food Safety Professionals, and 360training.com). Completion of an accredite course will result in a Food Safety Manager certificate that is valid for five years.Please be wary of online courses, especially those with a minimal fee. If the course does not result in an ANSI-CFP certificate, it is not acceptable. For questions about accredited course, call 610-344-6225.