These changes made to the disability questions mean that the population identified in 2008 is different from that identified in previous years and the results should not be compared. For a summary of all changes to the ACS 2008 survey see: http://www.census.gov/acs/www/Downloads/SummaryResultsACS2006ContentTest.pdf. Below are the disability questions used in the ACS 2003-7 and those used in the ACS 2008, with descriptions of the major differences between the questions with similar concepts.
Definition of undesirable discharge. : a formal release from military service under conditions other than honorable.
A discharge by an employer of an individual for violation of an employer rule is for misconduct connected with the work if the rule is reasonable, the individual knew or should have known the rule, and the violation is wilful or wanton, material, and substantially injures or tends to injure the employer's interests.