This Part 1 of EN 12899 specifies requirements for complete sign assemblies (including supports), signs (sign plates with sign faces), sign plates (without sign faces) and for other major components (retroreflective sheeting, supports and luminaires). The main intended use of fixed signs is for the instruction and guidance of road users on public and private land. Matters not covered by this standard: a) sign gantry and cantilever structures; b) signs with discontinuous messages, e.g. using light emitting diodes (LED), or fibre optics; c) variable message signs; d) signs used for temporary purposes; e) foundations; f) tests for extremely low temperatures.