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Senate Bill 498 Has Been Signed By the Governor!

Governor Brown signed into law Senate Bill 498 on September 28, 2014. This is a major victory for proponents of conversion technologies! SB 498 adds non-combustion conversion technologies to the biomass conversion definition, allowing for cleaner and more efficient non-combustion technologies to be used to make low carbon fuels as well as renewable energy from biomass waste.  Biomass is organic materials--such as wood, lawn and garden clippings, agricultural waste, leaves, tree pruning as well as non-recyclable paper--when separated from other solid waste and used for producing electricity or heat. The language for the bill is available at the following link: SB498

The County of Los Angeles and the California State Association of Counties appreciate your continued support!

Click here to see Supervisor Knabe's Press release on this momentous occasion!


"Converting Waste Into Renewable Resources"

Each day, 135,000 tons of trash is sent to California landfills. These materials represent a resource that could be better used to benefit the businesses and residents of California.

21st century conversion technologies are changing the way we think of trash or waste.  The County of Los Angeles sees trash as a potential resource, and conversion technologies are an innovative way to convert that resource into renewable energy, biofuels, and other useful products.

Together with source reduction, recycling, and composting, conversion technologies can help cities and counties reduce the amount of materials currently going to landfills.

Los Angeles County is a leader in preserving the environment and protecting public health through a variety of innovative environmental programs. The County is involved in a diverse approach to waste management through our waste reduction, reuse, and recycling programs.

This website focuses on the County’s conversion technology project, for more information about the County’s other environmental programs, please visit and


Conversion Technologies
The term “conversion technologies” refers to a wide array of technologies capable of converting postrecycled or residual solid waste into useful products, green fuels, and renewable energy through noncombustion thermal, chemical, or biological processes. Conversion technologies may include mechanical processes when combined with a non‐combustion thermal, chemical, or biological conversion process.

Recovery is defined as any waste management operation that diverts a material from the waste stream and which results in a product with a potential economic or ecological benefit. Recovery mainly refers to the following operations 1) reuse, 2) material recovery such as recycling, 3) biological recovery such as composting, and 4) energy recovery such as fuel production.