Access Codes

An access code is a unique sequence of letters and numbers verifying purchase of WebAssign access.

Some new textbooks include an access code. You can also purchase access codes at many campus bookstores; they are packaged on pre-printed cards or in security envelopes. If you don't have an access code, you can Purchase WebAssign Access and eBooks Online.

  • Access codes are not interchangeable between classes.
  • Access codes can only be used once.
  • Verify that the access code prefix (on the outside of the access code card or envelope) is valid for the textbook edition used in your class. Go to and search for your textbook edition.
  • Different access codes might be valid for either single-term multi-term access. Multi-term access codes often include either RMY or MTB in the prefix. If in doubt, check or contact Customer Support.