Section 28-209.2. Contents and service of order

All orders issued by the
  commissioner shall contain a description  of  the  building,  structure,
  premises,  equipment or subject matter affected, and shall be designated
  by address where applicable. All such orders shall be served by  regular
  mail  or, upon consent, electronically. Such orders may be served by any
  officer or employee of the department, or by any  person  authorized  by
  the  commissioner.  An  order  may  be  given  orally, followed within a
  reasonable time  by  a  written  order  as  described  in  this  section
  28-209.2.  Failure  to  comply  with  a  commissioner's order within the
  stated time period shall be a violation of this code punishable by civil
  penalties or criminal fines and imprisonment as set forth in this  code.
  Proof  of  compliance  with  a  commissioner's  order  shall  consist of
  certification as prescribed by the rules of the department.