Signage for No Smoking falls under the Maryland Code under Health General, Section 24-506, which states that: Signs that state "No Smoking or Vaping" shall be conspicuously posted and properly maintained in each indoor area open to the public and each public entrance to an indoor area where smoking or vaping is prohibited under this subtitle. Click on first link below for further specifics.

In the Montgomery County Section 24-9 (f) posting signs it says signs prohibiting or permitting smoking or vaping, as the case may be, must be posted conspicuously at each entrance to a public place covered by this Section. Where smoking or vaping is prohibited by this Section, the sign must read "No smoking or vaping by order of Montgomery County Code 24-9. Enforced by (department designated by the County Executive)" or be a performance- oriented sign such as "No Smoking or Vaping" or "This is a Smoke Free Establishment." The international no-smoking symbol may replace the words "No smoking". For the complete code, click on second link below.