Eastern Michigan University
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Contact Information

Most of the time, you need to contact either the instructor of your section (if you know who it is) or the course coordinator to resolve registration issues.  Contact information is available by clicking on the links above.

Registration for Chemistry Courses FAQs

A number of common registration issues encountered by chemistry students are addressed below, including who you should contact.  When you contact us, it is very helpful if you tell us exactly what error you are getting from the registration system.  Simply saying you need an "override" is not that helpful and will delay the resolution of the issue.  We need to know the specific error you are receiving so that we can properly address it.

What do you do if you get a Prerequisite Error?

This means that the registration system does not see that you have completed the required courses.

Prerequisites are routinely enforced for Chemistry Department courses. The goal of prerequisites is to ensure that students have the proper background to succeed in a course.  The prerequisites for a course can be found in the catalog.

If you have completed them, and they have not yet transferred or proper equivalencies have not been established for your transferred courses, you should contact the course coordinator and s/he can verify that you have the proper prerequisites and arrange to have a prerequisite waiver entered into the computer. 

If you have not completed the required prerequisite(s), then you need to contact the course coordinator or the instructor of your section and ask to have it waived, but these requests are rarely approved.

What do you do if you get a Corequisite Error?

In many Chemistry courses, there is a lab that must be taken concurrently with the lecture.  So, you must register for them both simultaneously.  To do this, ordinarily you need to go to the add/drop screen instead of choosing to lookup classes.  Click on add classes and then type the crn number for both the desired lecture and lab sections into the boxes at the bottom of the screen.

Do you need to take the lab with the lecture?

If the course has a lab, generally the answer is yes.  There are some exceptions:

In the following courses, the lab does not need to be taken with the lecture and can be taken later (but NOT earlier):  Chemistry and Society (115/116), Organic Chemistry (270/271 and 372/373), Biochemistry (452/453), and Physical Chemistry (463/465).  For these courses, the registration system will allow you to register for the lecture without the lab.

In the following courses, if you have already completed the course and received a grade, you do NOT need to repeat the lab:  CHEM 118, 120, 122, and 124.  You can contact the course coordinator or the instructor of your section to ask him/her to have a corequisite waiver entered so that you do not need to register for the lab (or so that you can drop the lab if you have already registered for it).  For CHEM 281, you should contact your individual instructor to find out his/her policy.

If you are a guest student and do not need the lab for your program of study, you can appeal to the instructor of your section to see if s/he will waive the lab corequisite.  This is not normally allowed, but exceptions have been made in certain circumstances.

What do you do if you get a Restriction Error?

There are three common reasons for restriction errors:

1.  You do not have the minimum grade in the prerequisite course.  If you still want to take the course, you need to appeal to the instructor of the section for which you are attempting to register.  The course coordinator is unlikely to override this restriction.

2.  You are a post-baccalaureate (post-bac or graduate) student attempting to register for a 100- or 200-level course.  Unless this course is in your program of study, it is not eligible for federal financial aid.  Since the registration system does not know if you are receiving financial aid, it defaults to assuming that you are receiving it and will not let you register.  This restriction can be waived by the department head or the course coordinator.  You simply need to contact him/her and verify that you are not receiving financial aid or that the course is on your program of study.

3.  There are a very few chemistry courses that are restricted to students with specific majors.  These are usually for education majors and the course title should indicate that this is the case.  You should choose a different course, unless you have decided to pursue an education major, in which case you should update your major in my.emich.

What if the class is full?  Can I get an override?

Registration limits are set by pedagogical, space, staff, and equipment considerations. Only the instructor of a section can override the enrollment limit.  In many cases, the course capacity equals the room capacity and s/he cannot give any overrides.  If you desire an override, contact your instructor as soon as possible (if no instructor is assigned yet, then you cannot get an override).  If there is an electronic waitlist, add your name to the waitlist.  If you are having trouble getting on an existing electronic waitlist, contact the department office (487-0106) for assistance.  For a few courses (most often analytical chemistry), electronic waitlists do not work well and so the department office keeps a paper waitlist.  For multi-section courses, waitlists are not routinely started until all (or most) of the sections are full.

Note that a waitlist is not a promise.  It may be used by the instructor to fill slots created by withdrawals and no-shows after classes start, or to notify you if by some miracle a new section is opened.  For a closed section where there is no waitlist, keep checking to see if an opening appears.  It is not unusual for students to drop courses and create openings at any time.  The first person to find the opening and register for it will get it.  If you are waiting for an opening, make sure that you have resolved any prerequisite, corequisite, or restriction errors in advance.  Otherwise, someone else might register for the opening while you are resolving the error. 

If all else fails.  You should show up for the first day of class.  Depending upon the number of students present, the room capacity, and pedagogical considerations, the instructor might allow some students into the class.  (Some, but not all, instructors give preference to students who have contacted them in advance.)  If you are closed out of a lab, maybe you can take advantage of our “First-Lab Rule”.


There usually are some students who intend to drop, but who might take weeks or months to get around to actually doing it. By then, it’s too late for others who have been closed out. Since we can’t play the “overbooking” game (as the airlines do), we have adopted the following policy: the lab spot of a student who misses or is late for the first lab meeting will be forfeited to a student who is present at that first meeting. The bumpee’s  registration will be cancelled unless s/he can get into another lab section, including the lecture part of a lecture/lab course. Each instructor decides the go/no-go point during the first lab meeting. If you must miss or be late for the first meeting of a lab course, be sure to notify your lab instructor well in advance. To get into a closed lab, you must attend the first meeting of the section you want. Chemistry labs normally meet on the first scheduled class day—to assume otherwise is to risk losing your spot!  Inquire in the Chemistry Office (541 Science Complex or phone 487-0106) to verify the first scheduled lab meeting. Each semester, we try to post the date of the first lab meeting on the door of the lab and other strategic locations around the building.  You may also hear from (or contact) your instructor.

How do you register for undergraduate research (297, 397, 398, 497, 498, 499)?

This is described on our Research Opportunities page.

How do you register for Co-op (387, 388, 389, 487, 488, 489)?

This is described on our Co-op page.

The Department of Chemistry is part of the College of Arts & Sciences, 214 Pray-Harrold