Notice of completion and authorization to apply the UL 1994 mark for the following: Flexible Photoluminescent material designated Models 7550-X or 7650-X and 50X Series – Flexible or Rigid signage Models 50R-XXXXX and 50F-XXXXX where XXXXX designates the sign model designation. This is the official authorization Jessup® has to use the UL1994 mark on specified products.