Want to get into substituting teaching but don't know where to start? Requirements vary wildly by state and can vary more by district within the state. Getting a sub job can be as easy as being a high school graduate or as involved as earning a Bachelor's degree and earning several certifications before you can even apply; it all depends on where you want to work.
The Substitute Teaching Institute at Utah State University has produced a comprehensive guide to the requirements to become a substitute teacher. The guide was updated in 2010 and while we feel this is current enough to provide useful information, you should always check requirements with the districts where you're interested in working.