Billboards in the State of Washington are a sure way to get noticed. The ads appear on large colorful boards visible to both drivers and pedestrians.This guide will provide the fundamental advertising requirements for real estate professionals in Washington State. With complete campaign control and any budget welcome, you can advertise your message on billboards in Washington at times that work for you. We issue advertising sign permits for advertising sign installations on private property along regulated state highways within commercial or industrial areas. Make your mark in Washington, DC with OUTFRONT. Ready to be in Good Company? How can we help you? Write "Washington" where it asks for the city and "D. C." or "DC" where it asks for the state, even though D.C. isn't a state.