Location of an activity...is it mutually exclusive?

The “where” filter describes the location (home, school, workplace…) where an activity is perforemed. Are the options mutually exclusive? For example, how does ATUS code the location if a pariticipant’s workplace is also home, which is not atypical for some occupations? Thanks very much.

Each activity has only one WHERE value. If a respondent performs paid work at home, then the location would be recorded as the respondent’s home (i.e. WHERE=0101).
Hope this helps.