A perennial stream or perennial river is a stream or river (channel) that has continuous flow in parts of its stream bed all year round during years of normal rainfall. "Perennial" streams are contrasted with "intermittent" streams which normally cease flowing for weeks or months each year, and with "ephemeral" channels that flow only for hours or days following rainfall.

Deadweight tonnage is a measure of how much weight a ship is carrying or can safely carry. It is the sum of the weights of cargo, fuel, fresh water, ballast water, provisions, passengers, and crew.

The Peace Corps is a volunteer program run by the United States government. The stated mission of the Peace Corps includes three goals: providing technical assistance; helping people outside the United States to understand American culture; and helping Americans to understand the cultures of other countries.

Los Angeles County Immunization Program efforts are targeted primarily toward pediatric and adolescent immunizations , with some adult immunization activities. Although this Program serves the entire County population, many activities are specifically directed toward communities with children at high risk of under-immunization. The Immunization Program partners with other organizations to provide outreach and immunization services in pockets of need areas , which are defined as those areas with large numbers of un-immunized and under-immunized children.

On Monday, after a long quarter-century, West Virginians said goodbye to their state's 6 percent food tax. Now to see what, if any, business we've been missing. In 1989, retailers warned that sales in West Virginia would go down if legislators imposed a 6 percent tax on food. "Whatever they put on would be passed on to the consumer," Charles Forth, who owned supermarkets in both West Virginia and Ohio, told the newspaper in February 1989. "Six percent is $6 on $100. That will make a difference when people are already hurting and trying to make ends meet." It's a lot easier to drive customers away than to win them back, a fact legislators should bear in mind when it comes to taxation.