Adjective : administrative ability.    From Dictionary.com. 

A 2 percent raise for 76 nonadministrative employees not represented by a union.    From Wordnik.com.  [News] Reference

You need to populate the RODC server only with the passwords of nonadministrative accounts.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

"in regular standing," at least half of whom "shall be laypeople, pastors, teachers and other nonadministrative employees, of both genders, and representing a range of age groups and nationalities.".    From Wordnik.com.  [Adventist News Network] Reference