Why does the TIA/EIA 568 specification call for a different maximum cable length than that specified by the IEEE standard?

What will be an ideal response?

The EIA/TIA 568 specification calls for a different maximum cable length for the horizontal runs than that specified by the IEEE standard because patch cables add extra distance - both in the telecommunications room, and at the work area. Therefore, the EIA/TIA compensates by reducing the horizontal cabling length in their specification.