An exit route must meet minimum height and width requirements. [29 CFR 1910.36(g)] The ceiling of an exit route must be at least seven feet six inches (2.3 m) high. Any projection from the ceiling must not reach a point less than six feet eight inches (2.0 m) from the floor.
4. adjective. In Britain, first-class postage is the quicker and more expensive type of postage. In the United States, first-class postage is the type of postage that is used for sending letters and postcards. Two first class stamps, please. The price of mailing a first-class letter will not be increasing this year.
1 2 price computation for first class mail first class mail prices are charged per ounce or fraction thereof any fraction of an ounce is considered a whole ounce for example if a piece weighs 1 2 ounces the weight postage increment is 2 ouncesthe minimum postage per addressed piece is that for a piece weighing 1 ounceirst class mail prices are charged per ounce or fraction thereof any fraction of an ounce is considered a whole ounce for example if a piece weighs 1 2 ounces the weight postage increment is 2 ounces the minimum postage per addressed piece is that for a piece weighing 1 ounce