(2)  Such  safety  glazing  labeling  shall  not be used on other than
safety glazing materials.
  (3) Permanent labeling  of  wire  glass,  laminated  glass  and  rigid
plastics  shall  not  be  required where the seller or installer of such
wire glass furnishes each buyer thereof a certificate stating that  such
wire  glass  meets  the  test  requirements  of  the  American  National
Standards Institute Standard ANSI Z-97.1-1972.