Section 24-115. Service of papers

(a) Service of any written notice, order
  or decision required by this code shall be made on the owner as follows:
    (1) Either by mailing the notice, order or decision  directed  to  the
  owner  of the equipment at the address listed in his or her application,
  permit or operating certificate or at the address where the equipment is
  located; or
    (2) By leaving the notice, order or decision with  the  owner  of  the
  equipment,  or  if  the owner is not an individual, with a member of the
  partnership or group concerned or with an officer or managing  agent  of
  the corporation.
    (b)  Service of any written notice, order or decision required by this
  code shall be made on a person:
    (1) Either by mailing the notice, order or decision  directed  to  the
  person at his or her principal place of business; or
    (2)  By  leaving  the notice, order or decision with the person, or if
  the person is not an individual, with a member  of  the  partnership  or
  group   concerned,   or  with  an  officer  or  managing  agent  of  the
  corporation.
    (c) Service of any written notice required by this code shall be  made
  on the department, commissioner or the board as follows:
    (1) Either by mailing the notice to the commissioner; or
    (2)  By  leaving  the notice at the department with an employee of the
  department designated for this purpose.