The Rule sets the mercury and acid gas emission limits for new facilities below levels that can accurately be monitored.

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The final rule sets a variety of targets depending on the type of plant and the type of coal it burns.

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The other rule sets out guidelines for "preventive controls for human food" and would require companies to have plans for foodborne illnesses.

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Over time firewall rule sets, called policies, tend to grow.

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The most competitive boats are the so-called meter classes, built according to a rule that sets the rough dimensions for vessels of each class.

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To avoid unnecessary purchases, she keeps inventories of their clothes on computer (her rule is to keep only five sets of underwear at any one time).

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Another rule was not to include box sets.

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