Section 306. Service of process

(a) Service of process on a registered agent may be made in the manner
  provided by law for the service of a summons, as if the registered agent
  was a defendant.
    (b)  Service  of  process  on  the  secretary  of  state as agent of a
  domestic corporation formed under article four of  this  chapter  or  an
  authorized foreign corporation shall be made by personally delivering to
  and leaving with him or his deputy, or with any person authorized by the
  secretary  of  state  to  receive  such  service,  at  the office of the
  department of state in the city of  Albany,  duplicate  copies  of  such
  process  together  with  the statutory fee, which fee shall be a taxable
  disbursement.  Service of process on such corporation shall be  complete
  when  the  secretary of state is so served. The secretary of state shall
  promptly send one of such  copies  by  certified  mail,  return  receipt
  requested,  to  such corporation, at the post office address, on file in
  the department of state,  specified  for  the  purpose.  If  a  domestic
  corporation  formed  under article four of this chapter or an authorized
  foreign corporation has no such address on file  in  the  department  of
  state,  the  secretary  of  state  shall  so  mail  such  copy  to  such
  corporation at the address of its office within this state  on  file  in
  the department.
    (c)  If  an  action  or special proceeding is instituted in a court of
  limited jurisdiction, service of process  may  be  made  in  the  manner
  provided  in  this  section  if  the  office of the domestic corporation
  formed under article four of this  chapter  or  foreign  corporation  is
  within the territorial jurisdiction of the court.
    (d) Nothing in this section shall affect the right to serve process in
  any other manner permitted by law.