OUTDOOR ADVERTISING SERVICES (SIC 7312)

Establishments primarily engaged in the preparation of poster
displays and painted and electric displays on billboards, panels,
bulletins, and frames, principally outdoors.  Such establishments
may (as incidental services) construct, repair, and maintain
display boards and may post advertisements.  Sign painting shops
are classified in Industry 7389.  Shops which make neon signs to
order are classified in Manufacturing.  Establishments primarily
engaged in erecting signs are classified in Construction.