With regard to sections 603(b)(iii) and (iv), the Commission states that it uses certain Commissionadopted definitions of small entities for purposes of its analysis and concludes that it is unable to quantify reasonably the impact that the proposed rule and amendments would have on small dealers and brokers.
They cannot reasonably quantify the impact of the rule.
The most common service consideration would involve the number of days to delivery, but mailers can also be interested in achieving delivery on a certain date or even in reducing the risk that the piece is lost in the mail.