This is a really great deal if you qualify and own an old working gas lawn mower. The four electric wireless lawn mower is offed 75% off the retail price. You could also get a cheap used gas mower to trade it for a new one. Below are the four models and I think I found the correct link for it.
"Registration Opens on April 17 for the 2013 Lawn Mower Exchange Program
Residents living within AQMD's 4-county jurisdiction* will be able to register to turn in their old, working, gas lawn mower and purchase a cordless, rechargeable, electric lawn mower at a greatly reduced price. Four models will be available for you to choose from when you register. The models and prices are listed below:
Make and Model Your Price Greenstation 20" w/24V battery $150 Greenstation 20" w/24V battery Self-Propelled Model $220 Black&Decker 18" w/36V battery $100 Black&Decker 19" w/36v battery $180 Black&Decker 19" W/36V battery Self-Propelled $250
The exchange dates are listed below. More detail to come.
May 4th Long Beach May 25th Pasadena June 8th Riverside July 13th Anaheim
If you would like to receive e-mail notification a week or two before registration opens, you can sign up by clicking here for the Lawn Mower Exchange List Serve. Enter your e-mail address twice and then select the Lawn Mower Exchange List Serve from the list of options. If you do not have e-mail you can call 1-888-425-6247 to leave your name and mailing address and an event flyer will be mailed to you.
This year we will offer 4 exchange locations for you to select from and we will have 4,000 electric lawn mowers available for exchange.
*The AQMD's jurisdiction includes all of Orange County, most of Los Angeles County (excluding the Antelope Valley), most of Riverside County, and the non-desert portion of San Bernardino County.