In addition, the rule exempts new nonroad compression-ignition engines at or above 37 kilowatts and new nonroad sparkignition engines at or below 19 kilowatts.
The rule states that new nonroad engines with more than 37 kilowats are exempt.
Should you venture east of Downtown, you'll find that although the lush orange and lemon groves that blossomed in the San Gabriel Valley 100 years ago have all but disappeared, this proserous suburban area still has a wealth of botanical delights.