The Noise Pollution Clearinghouse is a non-profit organization dedicated to creating more livable civil cities and more natural rural and wilderness areas by reducing noise pollution at the source. They publish a newsletter twice a year. To reach them write to PO box 1137, Montpelier, VT 05601; tel(toll free) 888-200-8332; e-mail npc@nonoise.org; web site www.nonoise.org