It is required by code to install labels or plaques to communicate the rated load capacity of the racks.
There are several ways of communicating the load capacity of a racking system. One can use adhesive labels placed on the first beam elevation (at eye-level) since it allows for varying load capacity throughout a rack system. If your racks have the same load capacity throughout, you may use rated load plaques to remind the forklift operators of the load capacity before entering an aisle. These plaques generally include the maximum bay capacity, maximum beam capacity and the details about the rack's manufacturer and often a project date.
Here is an example of a load capacity label: