Why Is Heating Exam Require For Contractors inND?

In North Dakota, home improvement contractors must pass the state contractor exam in order to be licensed. Each state has its own requirements for its contractors. Some of the things that you will need to know are the amount of experience and education that the contractor has, the number of complaints that have been lodged against him, and the number of awards that he has received. All this information can help you understand why is heating exam require for contractors in ND?