Ice a density about one quarter of that of pure ice. Hard rime is comparatively dense. Ice pellets are a form of precipitation consisting of small, translucent balls of ice. This form of precipitation is also referred to as "sleet" by the United States National Weather Service. (In British English "sleet" refers to a mixture of rain and snow). Ice pellets are usually smaller than hailstones. They often bounce when they hit the ground, and generally do not freeze into a solid mass unless mixed with freezing rain. The METAR code for ice pellets is "PL". Ice pellets form when a
David Sleet lower the legal blood alcohol content (BAC) limit to 0.08 percent for drivers in the United States. This recommendation helped inform the U.S. Congress which mandated states adopt the stricter BAC limit of 0.08 percent by October 2003 or risk losing a portion of their highway funding. By 2004 all 50 states had passed 0.08 percent laws for drivers, making it the new national standard. Dr. Sleet has received numerous public health awards including the following: He has served on the following editorial boards: David Sleet David A. Sleet is an American scientist recognized for championing the application of behavioral