Because of this serious pollution proplem.California has for over 20 years set tough polltion laws . Even so,LA's smog proplem has not been solved. So now,the sunshine state has taken the first step toward removing the internal combustion engine altogether from its roads.From 1998, all car-makers who sell their cars in Califirnia will have to offer a proportiin of electric cares for sale.In 1998 the proportion of electric cars offered must be two per cent,rising to five per cent by 2003 and to ten per cent by 2005.