This is the second part of the condition handling discussion. It would be helpful for you to read Language Environment condition handling introduction before reading this chapter. Language Environment condition handling introduction introduces you to terminology and concepts that are discussed in the present chapter, and offers a brief overview of pre-Language Environment HLL condition handling. It discusses in detail the Language Environment condition handling model and the many services that you can use to tailor how conditions are handled in your application. In addition, it introduces the three steps of condition handling in Language Environment.