Regulators in drought-stricken California are proposing stringent new conservation measures to limit outdoor water use, including fines of up to $500 a day for using a hose without a shut-off nozzle. _0"> The most populous U.S. state is suffering its third year of drought and in January Governor Jerry Brown declared a drought emergency, allowing the state to request federal aid. In some cities and towns about half the water residents use is for lawns and cleaning cars, according to the State Water Resources Control Board, which made the proposal public on Tuesday. Voluntary measures do not go far enough, it said. "It's not meant to spank people, it's meant to make people aware and say, 'This is serious; conserve'," said agency spokesman Timothy Moran, noting that the rules authorize local law enforcement agencies to write tickets imposing fines. The new restrictions prohibit watering gardens enough to cause visible runoff onto roads or walkways