Which feature is required on a sign for a remote fire department connection?

A sign for a remote fire department connection must feature raised or engraved letters to ensure that the information is clearly visible and easily readable by firefighters in emergency situations. This requirement enhances the legibility of important details even in low light or adverse weather conditions, facilitating a rapid response when time is critical. The use of raised or engraved lettering is particularly effective in conveying essential information without the need for electrical power or advanced technology, thus supporting reliability in various environments.

While other options may offer additional advantages, like color-coded systems for identification or reflective materials for visibility, the fundamental requirement focuses on the clarity and accessibility of the information provided to first responders. Ensuring that these letters are raised or engraved is a practical and straightforward solution that addresses the vital need for effective communication during emergencies.