2014 New York Laws
GBS - General Business
Article 29-GG - (599 - 599-E) SALE OF TRAFFIC CONTROL DEVICES
599-B - Certificate of approval.

  599-b.  Certificate  of  approval. Any person, firm, association or
  corporation desiring a certificate of approval of  any  traffic  control
  device  not  conforming  to  the current manual and specifications for a
  uniform system of traffic-control devices shall submit to the department
  of transportation one or more sets of each  type  of  device  for  which
  approval is desired or such plans, specifications, design information or
  data  that the commissioner may require, in accordance with and together
  with the fee provided by the rules and regulations  promulgated  by  the
  commissioner  of transportation pursuant to this article. Upon a finding
  by the commissioner that the use of any such traffic-control  device  is
  necessary,  because  there  are  no  equivalent  conforming devices, and
  because such use is consistent with the safe regulation  of  traffic  on
  highways  within  this state, he may issue a certificate of approval for
  the sale, lease or offer for sale or hire of any such device.