Your prerequisite coursework should be completed or nearly completed by the time you apply for professional school. If you are planning on four years at Michigan Tech, this means your prerequisites should be completed by the end of your third year. In the spring of your third year, you should take the standardized exam for your desired occupation. Most applications are due a year before you plan to enroll and many organizations have application services available. The application service allows you to submit your application to one place and then the application is forwarded to the schools you select. This saves you the work of having to send all your materials to each individual school. Most application services open early in the summer and deadlines for applications range from early September until January. It is to your advantage to send your application into the service as soon as possible. The deadlines are the last date the school will accept applications but their classes may be filled long before the stated deadline.