Someone please explain how a president alone can garnish wages. Edict? Exec order?

[Mika]

Does the crowd mewling over "garnishing" wages and other health care issues understand how laws and bills are created, modified, & passed?

After reading some of the many threads on candidates positions on health care, it doesn't look like it.


http://www.archives.gov/national-archives-experience/charters/constitution.html


To clear my question up .. I'm not asking about the pros or cons of it, nor about the methodology of garnishing itself - I'm asking how could a president alone do this?