Johns Hopkins University

The Occupational and Environmental Hygiene, Master of Science program is accredited by the Accreditation Board for Engineering and Technology (ABET) Applied and Natural Science Accreditation Commission (ANSAC) and is designed to prepare students to pass the Certified Industrial Hygienist (CIH) examination administered by the American Board of Industrial Hygiene (ABIH).

The Bloomberg School of Public Health operates on a term system rather than a semester system. There are 4 numbered terms in the regular academic year as well as a summer institute and a winter intersession. The academic terms are 8 weeks in length and the institutes/intersessions are 2 weeks each. Part-time/Online Occupational and Environmental Hygiene, Master of Science students are required to come to campus for courses that do not translate to an online format (laboratory and field trip-based courses). These courses are held during the summer institute and winter intersession. Students will attend 2 summer institutes and one winter intersession over the course of their degree program. 

Students must be employed in the industrial hygiene or safety fields since all students are required to complete an independent professional project as part of their degree and in most instances, this is completed at the student’s place of employment.  

Prior education must include (1) an undergraduate degree from a regionally accredited four-year college or university, (2) successful completion of college-level courses in biology, chemistry, calculus and physics. 

Applicants whose prior education does not include the prerequisites listed above may still enroll under provisional status, followed by full admission status once they have completed the missing prerequisites. Courses completed at a local community college are acceptable.