The CPH certification is very new so most employers don't know about it. I'm CHES which has been around for 50 years and many outside of public health field (like HR, physicans, people who may be interviewing/hiring you) don't know about it. The most important thing is that your program is certifed by CEPH, if it is your coursework will give you the knowledge to pass the CPH test should you decide to take it. If you are interested in behavior change/ health education then you need to consider taking the CHES exam. The best scenario would be to wait until you have a public health related job and so that your employer can pay for the exam.