Those reports are required by regulators only twice a year.

The reports are required every five years for buildings seven stories and taller.

Requiring periodic free reports to everyone is a bad idea.

This requires periodic reports about national activities and their effects.

The report is required by the tax overhaul law enacted last year.

Agents say that when they are forced to close tax issues against their professional judgment, no report is required.

Additional reports are required when a stake is increased or reduced another 1 percent.

President Clinton wants all states to require such reports.

Many member countries already require quarterly reports, but not Britain, the union's biggest financial center.

Usually more than a single report is required to generate a signal, depending upon the event and quality of the information available.