Words similar to subclasses

Example sentences for: subclasses

How can you use “subclasses” in a sentence? Here are some example sentences to help you improve your vocabulary:

They also protect the preferred subclasses of mail, low rates for Periodicals, classifications that are not market based, rates that do not follow costs, and a range of other practices discussed in this paper.
And for these subclasses, there are no cases where a lower price will lead to an increase in net revenue.
The Postal Service has two basic subclasses for letters and flats: First Class (originally rapid, non-bulk, and sealed against inspection) and Standard A (originally deferrable, bulk, and not sealed against inspection).
Under current conventions the Postal Service sets prices for whole subclasses and cannot select specific customers for surcharges or discounts.
Further, the periodicals subclasses have strict rules on enclosures, have regulations that depend on whether the publication is bound or unbound, and most have rates that depend on whether the material inside is advertising or editorial.