A supply and installation company, not a catalogue.

Listed material on the shelf is the easy part. The objections come from the parts a catalogue cannot sell you: a demarcation line that stops at a door instead of crossing it, a stripe that is not continuous, signs set at the wrong height because of a baseboard, material applied to a tread that was never going to hold adhesive.

The standard is clear that these markings exist for one scenario — the failure of both normal and back-up power. That is the standard we hold the work to.