Format for photoluminescent sign formed by a 3 mm-thick methacrylate plate and a metal accessory that enables it to be mounted on the ceiling and suspend it 30 cm by means of rods. The pictograph may be set to one or both sides. Designed in accordance with the UNE 23034 standard with maximum observation distance of 10 metres, suitable for compliance with the CTE in its DB-SI core document. Photoluminescent emergency sign complies with the UNE 23035 standards.