Glossary of Terms

This glossary of terms helps jurisdictions, state agencies, large state facilities, and other interested parties in interpreting terms related to local assistance, diversion, planning, and reporting. This alphabetical list provides the term along with its meaning. A list of acronyms is also provided.

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50 percent per capita disposal target: the amount of disposal that is approximately equivalent to the current 50 percent diversion requirement.

  • To meet the 50 percent goal, jurisdictions must dispose of not more than their 50 percent per capita disposal target.
  • For most jurisdictions, the 50 percent per capita disposal target will be based on the average of 50 percent of generation in 2003 through 2006 expressed in terms of per capita disposal.

AB 75 (Chapter 764, Statutes of 1999): This 1999 State legislation requires each California State agency, on or before July 1, 2000, to develop and adopt, in consultation with CalRecycle, an integrated waste management plan. The bill also requires each State agency and each large State facility, as defined, to divert at least 25 percent of its solid waste by January 1, 2002, and at least 50 percent by January 1, 2004.


Adjustment method: A standard formula used in diversion rate measurement to offset changes in a jurisdiction’s population and economic conditions between the base year and the measurement year. Without the adjustment method, population growth and economic booms would result in lower diversion rates. Public Resources Code section 41780.1 requires use of this adjustment method. There are four factors in the adjustment method. Under the new disposal measurement system established by SB 1016, jurisdictions’ diversion rates will no longer be calculated by the CIWMB, (now known as CalRecycle) to determine compliance with AB 939.

Advanced disposal fee: Consumer payment made by the consumer at the time of product purchase to cover all future costs—including environmental costs—for recycling or disposal of that product.

Alternative daily cover: CalRecycle-approved materials other than soil used as a temporary overlay on an exposed landfill face. Generally, these materials must be processed so that they do not allow gaps in the face surface, which would provide breeding grounds for insects and vermin. Public Resources Code section 41781.3 stipulates this practice is recycling, not disposal, and authorizes CalRecycle to adopt regulations, such as Title 27 California Code of Regulations, section 20690. Approved materials include processed green materials, sludge, ash and kiln residue, compost, construction and demolition debris, and special foams and fabrics. Also see Daily/Intermediate Cover and Alternative Daily/Intermediate Cover Guidelines. In September 2014, Governor Brown signed Assembly Bill (AB) 1594 (Williams, Chapter 719, Statutes of 2014), mandating that as of January 1, 2020, the use of green material as alternative daily cover (ADC) will no longer constitute diversion through recycling and will instead be considered disposal in terms of measuring a jurisdiction’s annual 50 percent per capita disposal rate (Public Resources Code (PRC) Section 41781.3).

Alternative intermediate cover (AIC): CalRecycle-approved materials other than soil used at a landfill on all surfaces of the fill where no additional solid waste will be deposited within 180 days. Generally, these materials must be processed so that they do not allow gaps in the face surface, which would provide breeding grounds for insects and vermin. Public Resources Code section 41781.3 stipulates this practice is recycling, not disposal, and authorizes CalRecycle to adopt regulations, such as Title 27 California Code of Regulations, section 20700. Also see Daily/Intermediate Cover and Alternative Daily/Intermediate Cover Guidelines.

Annual report: State law (Public Resources Code section 41821 et seq.) requires each jurisdiction to annually submit a report to CalRecycle that discusses that year’s progress toward implementing waste diversion programs and/or facilities described in a jurisdiction’s waste management planning documents. This report also includes the jurisdiction’s calculated annual per capita disposal rate. Annual reports are due to CalRecycle August 1 each year for the prior calendar year. CalRecycle developed a model annual report to help jurisdictions more easily meet this requirement.

Base-year generation tonnage: CalRecycle-approved initial waste generation amount (disposal + diversion) for any jurisdiction. Diversion rates for all subsequent years are calculated using the base-year generation amount, as modified by CalRecycle-approved adjustment method. If the base year tonnage is inaccurate, or if there are major changes in the nature of a jurisdiction’s solid waste production, subsequent diversion rate calculations will be inaccurate. Jurisdictions with base-year-related diversion rate calculation problems often choose to establish a new base year by conducting a new diversion study or generation study. With the implementation of the SB 1016 measurement system, CalRecycle will only accept new base year studies commenced prior to June 30, 2008. A jurisdiction may conduct a generation study for internal review purposes; however, CalRecycle will not review it for compliance determination.

Beneficial reuse: Solid waste at a landfill can be used for beneficial reuse which shall include, but not be limited to, the following: alternative daily cover, alternative intermediate cover, final cover foundation layer, liner operations layer, leachate and landfill gas collection system, construction fill, road base, wet weather operations pads and access roads, and soil amendments for erosion control and landscaping. Beneficial reuse is further defined in Title 27 California Code of Regulations, section 20686.

Biennial/Jurisdiction review: Formerly Biennial review, CalRecycle’s evaluation of a jurisdiction’s waste diversion program implementation and diversion rate performance. (prior to 2007). After 2007, CalRecycle will use each jurisdiction’s per capita disposal rate to determine which cycle, either a four-year or two-year cycle, that each jurisdiction is in for the next review. The evaluation, and subsequent public hearing, may occur more frequently than biennially (once every two years), or less frequently (every four years), at the discretion of CalRecycle. Please see Public Resources Code section 41825.

Biomass: Controlled burning of specified organic materials, such as wood waste, agricultural crop residues, leaves, grass clippings, and prunings to produce electricity or heat. Public Resources Code section 40106 defines biomass conversion. Public Resources Code section 41783.1 describes how it may be used to increase diversion.

Brown goods: Computers, televisions, radios and other home electronics. Named during the days when many televisions and radios had wood or fake wood cabinets.

CalRecycle-permitted landfill: A facility located within California that is permitted by CalRecycle to accept and bury solid waste from jurisdictions within and outside of California.

Commercial sector: Commercial sector waste comes from all businesses, small and large, including wholesale and retail sales, restaurants, manufacturing, and transport. The commercial sector also includes government, schools, institutions, fairs and expositions, and other special events. It may also include the subdivision of commercial self-haul, which would include any waste generated by a business and hauled by that business to a CalRecycle-permitted landfill or transformation facility; for example, a roofing company that routinely hauls to the landfill old roofing materials removed from job sites. Commercial self-haul would also include small businesses that haul odd loads for a living. The commercial, residential, and self-haul sectors make up the complete waste stream.

Compliance order: A formal CalRecycle order finding that a jurisdiction has failed to implement its source reduction and recycling element (SRRE) or its household hazardous waste element (HHWE), and comply with the act. The compliance order contains a specific schedule for achieving compliance, as well as specific conditions that CalRecycle deems necessary for the jurisdiction to complete in order to implement its SRRE or HHWE or reach its required per capita disposal target. Please see Public Resources Code section 41825.

Component: Each jurisdiction’s “source reduction and recycling element” (SRRE) must contain nine components, each of which specifies objectives for a major type of diversion program. These nine required SRRE components are source reduction, recycling, composting, special waste, education and public information, solid waste facility capacity, funding, waste characterization, and integration. Please see Title 14, California Code of Regulations, sections 18733 et seq.

Composting: The process of collecting, grinding, mixing, piling, and supplying sufficient moisture and air to organic materials to speed natural decay. The finished product of a composting operations is compost, a soil amendment suitable for incorporating into topsoil and for growing plants. Compost is different than mulch, which is a shredded or chipped organic product placed on top of soil as a protective layer. Please see Public Resources Code section 40116 or CalRecycle’s organics pages.

Construction and demolition (C&D) debris: Building materials and solid waste from construction, deconstruction, remodeling, repair, cleanup, or demolition operations that are not “hazardous” (as defined in Public Resources Code section 40141). This term includes, but is not limited to: asphalt, concrete, Portland cement, brick, lumber, wallboard, roofing material, ceramic tile, plastic pipe, and associated packaging.

Consumer price index (CPI): A measure of inflation, or the decrease in the purchasing power of a dollar, based on the change over time of the average prices paid by urban consumers for a “market basket” of goods and services—such as food, clothing, shelter and fuel—used for day-to-day living. In CalRecycle’s-approved adjustment method, CPI deflates report-year taxable sales into inflation-free dollars. Three California metropolitan-area CPI rates are computed by the U.S. Department of Labor, Bureau of Labor Statistics. Statewide average CPI is computed by the State’s Department of Industrial Relations.

Countywide integrated waste management plan (planning documents): The complete package of planning documents required by Public Resources Code section 41750, prepared by a county or a regional agency in conjunction with all cities within its boundaries. Each city must prepare a source reduction and recycling element (SRRE), a household hazardous waste element (HHWE) and a nondisposal facility element (NDFE). Each county must prepare all of those documents for unincorporated areas within their boundaries, plus a countywide siting element (CSE) and a summary plan (SP). A regional agency may use existing plans for each member agency or prepare a single SRRE, HHWE, NDFE, CSE and SP for all regional agency members.

Countywide siting element: Part of a county’s or a regional agency’s integrated waste management plan, the siting element demonstrates ability to provide 15 years of permitted disposal capacity for all jurisdictions within the county or regional agency. If the county or regional agency cannot show 15 years of disposal capacity, it must show a plan to obtain that capacity, or to transform, or to divert its waste. Title 14, California Code of Regulations, section 18755-18756.7 et seq. covers siting elements.

Covered electronic waste (CEW): A covered electronic waste is a discarded covered electronic device (CED). A CED means a device that is identified in the regulations adopted by the Department of Toxic Substances Control (DTSC) and CalRecycle pursuant to California Law. Examples of CEDs include computer monitors, cathode ray tube devices including televisions and monitors, LCD monitors and laptops, and LCD and plasma televisions.

Deconstruction: The process of taking apart a structure with the primary goal of preserving the value of all useful building materials, so that they may be reused or recycled.

Disposal: All waste created by all sources within each jurisdiction (including businesses, government agencies and residents) which is disposed at CalRecycle-permitted landfills or CalRecycle-permitted transformation facilities, or is exported from the state. CalRecycle tracks tons of waste disposed by each jurisdiction using its disposal reporting system. Also, please see Public Resources Code section 40192.

Disposal Rate: see Per capita disposal.

Disposal reporting system: CalRecycle’s system to track how much waste is disposed by each city, county and regional agency in California. Tracking originates with each county or regional agency, which submits quarterly disposal reports to CalRecycle. Waste facility operators conduct quarterly “jurisdiction of waste origin surveys,” to estimate the amount of waste disposed at that facility by each jurisdiction. Please see Article 9.2. Disposal Reporting System Title 14, California Code of Regulations, section 18800.

Diversion: For waste measurement purposes, diversion is any combination of waste prevention (source reduction), recycling, reuse and composting activities that reduces waste disposed at CalRecycle-permitted landfills and transformation facilities. Diversion is achieved through the implementation of diversion programs. Please see Public Resources Code section 41780.

Diversion program: Any activity implemented by a jurisdiction to divert solid waste from disposal, including source reduction (waste prevention), reuse, recycling, and composting. Diversion activities must be in accordance with all applicable federal, State and local requirements.

Diversion rate: The percentage of its total waste that a jurisdiction diverted from disposal at CalRecycle-permitted landfills and transformation facilities through reduction, reuse, recycling programs, and composting programs. Jurisdictions are required by law to achieve 50 percent diversion for the year 2000. CalRecycle developed the diversion rate calculator to assist jurisdictions with the diversion rate equation. Under the new disposal measurement system established by SB 1016, jurisdictions’ diversion rates will no longer be calculated by the CalRecycle to determine compliance with AB 939.

Diversion study: A CalRecycle-approved methodology used to quantify a jurisdiction’s existing diversion tonnages. A jurisdiction may use the results of a properly conducted diversion study in support of a request to CalRecycle for a new base-year generation tonnage.

Employment: means the estimate of the annual average number of employees by jurisdiction as prepared by the California Employment Development Department (EDD).

  • It is the number of people aged 16 years or older employed at places within each jurisdiction’s boundaries (industry employment)–not the number of jurisdiction residents with jobs (labor force employment).
  • Employment includes full-time and part-time employees even if the employee is on paid vacation or paid sick leave, but not if the employee is involved in a labor-management dispute.
  • Self-employed, unpaid family workers, and private household employees are not included.
  • It is a benchmark estimate to compare year-to-year employment change.

Franchise hauler: Any waste hauler that has a contract granted by a county board of supervisors, after a competitive bidding process, for the collection, disposal or destruction, or any combination thereof, of garbage, waste, offal or debris. The terms and conditions of the “franchise” are set forth in a written agreement, which may not last longer than 25 years. (Public Resources Code section 49201 (a)) Cities may adopt similar contracts by resolution or ordinance. (PRC section 49300).


Generation: The total amount of waste produced by a jurisdiction. The basic formula is disposal plus diversion equals generation.

Generation study: Quantification of a jurisdiction’s waste production and disposal characteristics.  All California jurisdictions were required to perform a generation study as part of their original compliance with the Integrated Waste Management Act. Typically, jurisdictions wishing to establish a new base year complete a diversion study and retrieve their disposal data from CalRecycle’s disposal reporting system (DRS). However, CalRecycle may accept well-documented disposal data from sources other than the DRS.

Good faith effort: Per Public Resources Code section 41850 (c)(1)(B)(i), good faith efforts means all reasonable and feasible efforts by a city, county, or regional agency to implement those programs or activities identified in its source reduction and recycling element or household hazardous waste element, or alternative programs or activities that achieve the same or similar results. Please see the code for more detailed definitions. CalRecycle has adopted detailed enforcement guidelines for evaluating agencies that fail to implement their plans or fail to achieve required per capita disposal rates.

Household hazardous waste: Hazardous waste materials discarded, typically in small quantities, by households (as opposed to large quantities disposed by businesses). Typical household hazardous wastes include used motor oil and oil filters, antifreeze and other vehicle fluids, paints and varnishes, pesticides, and cleaning supplies. See Health and Safety Code section 25216. Also, please see CalRecycle’s HHW Web site and the Waste Characterization materials definitions page.

Household hazardous waste element (HHWE): One of several solid waste planning documents required by the Integrated Waste Management Act. Every city, county and regional agency must specify how it will safely collect and dispose of household hazardous wastes generated by its residents. Please see Title 14, California Code of Regulations, sections 18750 et seq.

Indian country: Territory controlled by Native American tribal governments is considered a sovereign nation. For the purposes of disposal reporting, waste from Indian Country is considered imported waste and waste sent to Indian Country is considered exported waste. Counties and CalRecycle-permitted landfills and transformation facilities that accept waste from Indian country are importing waste. California jurisdictions sending waste to Indian country are exporting waste. Please see Public Resources Code section 44201.

Inflation-adjusted taxable sales: The total sales of taxable goods and services, as estimated by the California Board of Equalization, based on sales tax receipts, and adjusted using the consumer price index. Used in the  CalRecycle-approved adjustment method to estimate report-year waste generation. (Wholesale transactions are typically exempt from sales tax in the United States, as are taxes on many services.)

Integrated Waste Management Act (IWMA): Also known as AB 939 (Chapter 1095, Statutes of 1989), the IWMA created the Board now known as CalRecycle, required each jurisdiction in the state to submit detailed solid waste planning documents for CalRecycle approval, set diversion requirements of 25 percent in 1995 and 50 percent in 2000, established a comprehensive statewide system of permitting, inspections, enforcement, and maintenance for solid waste facilities, and authorized local jurisdictions to impose fees based on the types or amounts of solid waste generated. A more detailed description of the IWMA is found in CalRecycle’s legislative history overview.

Jurisdiction: A city, county, a combined city and county, or a regional agency with the responsibility for meeting Integrated Waste Management Act requirements.

Jurisdiction review: Formerly Biennial review, CalRecycle’s evaluation of a jurisdiction’s waste diversion program implementation and diversion rate performance. (prior to 2007). After 2007, CalRecycle will use each jurisdiction’s per capita disposal rate to determine which cycle, either a four-year or two-year cycle, that each jurisdiction is in for the next review. The evaluation, and subsequent public hearing, may occur more frequently than biennially (once every two years), or less frequently (every four years), at the discretion of CalRecycle. Please see Public Resources Code section 41825.

Landfill: Please see CalRecycle-permitted landfill


Materials recovery facility: More commonly called a MRF (pronounced “Murf”). An intermediate processing facility designed to remove recyclables and other valuable materials from the waste stream. A “dirty MRF” removes reusable materials from unseparated trash. A “clean MRF” separates materials from commingled recyclables, typically collected from residential or commercial curbside programs.

Maximum diversion rate: A calculation that selects default or standard adjustment factors–populationemploymenttaxable salesconsumer price index–resulting in the highest diversion rate for a jurisdiction. Under the new disposal measurement system established by SB 1016, jurisdictions’ diversion rates will no longer be calculated by the CalRecycle to determine compliance with AB 939.

Medical waste: Untreated medical waste regulated under the Medical Waste Management Act that is not defined as solid waste and cannot be disposed at CalRecycle-permitted landfills (see Health and Safety Code section 117600 et seq.). Treated medical waste that is deemed to be solid waste may be disposed at CalRecycle-permitted solid waste facilities. For diversion rate measurement purposes, the host jurisdiction of a regional medical waste treatment facility that produces treated medical waste may subtract that tonnage from report-year disposal.

Minimum diversion rate: A calculation that selects default or standard adjustment factors–population, employment, taxable sales, consumer price index (CPI)–resulting in the lowest diversion rate for a jurisdiction.

New base year: See Base-year generation tonnage.

New generation study: See Generation study.

Non-disposal facility element (NDFE): One of a jurisdiction’s planning documents, the NDFE identifies CalRecycle-permitted “non-disposal” facilities used by a jurisdiction to help reach the IWMA‘s diversion mandates. Nondisposal facilities are primarily materials recovery facilities, compost facilities, and transfer stations, but a jurisdiction’s NDFE may also discuss recycling centers, drop-off centers and household hazardous waste facilities. Please see Title 14, California Code of Regulations, sections 18752-18754.

Organics: Materials that are or were recently living, such as leaves, grass, agricultural crop residues, or food scraps. Please see the waste characterization materials page and CalRecycle’s organics Web site.


Per Capita Disposal: is a numeric indicator of reported disposal divided by jurisdiction population (residents) or in some cases jurisdiction industry employment (employees) to obtain disposal by individual.

Planning documents: Please see countywide integrated waste management plan or Public Resources Code section 41750

Population: The January 1 estimate of the number of inhabitants occupying a jurisdiction as prepared by the California Department of Finance (DOF) for each non-Census year (calendar year ending with a digit other than zero). “Population” also means the April 1 U.S. Census count for each Census year (calendar year ending with the digit zero).

  • Population includes each person at the place where the person lives and sleeps most of the time. This place is not necessarily the same as the person’s voting residence or legal residence.
  • Noncitizens who are living in the United States are included, regardless of their immigration status.
  • Persons are included regardless of characteristics such as: college student, commuter worker, domestic worker or live-in nanny, foreign national, homeless, hospital or nursing home patient, prisoner, intermittent resident or “snow-bird,” military member, tourist or undocumented worker.
  • The fundamental goal is to count each person once, only once, and in the correct “usual residence” location according to U.S. Census residence rules.

Procurement program: Programs that encourage the purchase of recycled-content products by companies, jurisdictions and others. Joint recycled-content product purchasing pools and buy-recycled campaigns are two examples.

Recycling Per Public Resources Code section 40180, the process of collecting, sorting, cleansing, treating, and reconstituting materials that would otherwise become solid waste, and returning them to the economic mainstream in the form of raw material for new, reused, or reconstituted products that meet the quality standards necessary to be used in the marketplace.

Regional agency: A legal partnership of two or more jurisdictions, formed with CalRecycle approval, designed to meet IWMA requirements, to reduce the cost of reporting and tracking waste disposal and diversion, and to increase the diversion of solid waste from disposal facilities. Please see our regional agencies basics or our list of CalRecycle-approved regional agencies and their membership. Also, please see Public Resources Code section 40970.

Report year: The calendar year covered by an annual report prepared by a jurisdiction, detailing diversion programs implemented and the diversion rate achieved. Title 14, California Code of Regulations, section 18794 (e)(1) specifies annual reports are due August 1 of the year following the report year. For example, an annual report covering calendar year 1999 is due to CalRecycle by August 1, 2000.

Report-year generation: The amount of waste generated in any jurisdiction during a report year, as indicated in that jurisdiction’s annual report.

Residential sector: Waste stream segment generated by single- and multifamily residences, not by businesses or by government offices. The commercial, residential, and self-haul sectors make up the complete waste stream.

Restricted waste: Pre-1990 diverted material counted as diversion in the base year when Public Resources Code section 41781.2 requirements are met. Restricted wastes include: agricultural wastes, inert solids (including inert solids used for structural fill), white-coated major appliances, and scrap metals. All new diversion of these materials counts toward achievement of the diversion requirements.

Reuse: The recovery or reapplication of a package or product for uses similar or identical to its originally intended application, without manufacturing or preparation processes that significantly alter the original package or product.

Rural County: as defined in Section 40184 of the Public Resources Cod (PRC), means a county or multicounty regional agency that annually disposes of no more than 200,000 tons of solid waste, “Rural city” or “rural regional agency” means a city or regional agency that is located within a rural county.


SB 1016: SB 1016 builds on AB 939 compliance requirements by implementing a simplified measure of jurisdictions’ performance. SB 1016 accomplishes this by changing to a disposal-based indicator–the per capita disposal rate–which uses only two factors: a jurisdiction’s population (or in some cases employment) and its disposal as reported by disposal facilities.

Self-haul sector: Waste that is hauled to a transfer, processing, or disposal facility by someone other than a franchise waste hauler or by someone whose primary business is not waste hauling. The commercialresidential, and self-haul sectors make up the complete waste stream.

Solid waste generation study (SWGS): The waste characterization component of the SRRE, which contains information on the types and amounts of waste disposed and diverted within a jurisdiction and which establishes the base level for measuring future diversion achievement. Please see Title 14 California Code of Regulations, section 18722 for more details. The study is required and described by Public Resources Code sections 4100341030 (cities) and sections 41303 and 41330 (counties).

Source reduction: Per Public Resources Code section 40196, “source reduction” means any action which causes a net reduction in the generation of solid waste. Source reduction includes, but is not limited to, reducing the use of nonrecyclable materials, replacing disposable materials and products with reusable materials and products, reducing packaging, reducing the amount of yard wastes generated, establishing garbage rate structures with incentives to reduce waste tonnage generated, and increasing the efficiency of the use of paper, cardboard, glass, metal, plastic, and other materials. See the PARIS list of source reduction programs and codes.

Source reduction and recycling element (SRRE): Plans prepared by all jurisdictions in accordance with Public Resources Code section 41000 et seq. (cities) and section 41300 et seq. (counties). The SRRE sets forth a jurisdiction’s basic strategy for management of solid waste generated within its borders, with emphasis on implementation of source reductionrecycling, and composting programs. The SRRE should also identify the amount of landfill and/or transformation capacity necessary to dispose of solid waste that cannot be reduced at the source, recycled, or composted. It is one of several solid waste planning documents required by the IWMA.

Special waste: For waste characterization purposes, special waste is waste that poses a chronic toxicity hazard to human health or the environment, requiring special collection, treatment, handling, storage, or transfer techniques. Per Title 14, California Code of Regulations, section 18722 (j)(8), special wastes include:

  • Ash
  • Sewage sludge
  • Industrial sludge
  • Asbestos
  • Auto shredder waste
  • Auto bodies
  • Other special wastes

Summary plan: A solid waste planning document required by Public Resources Code section 41751, in which counties or regional agencies provide an overview of significant waste management problems faced by the jurisdiction, along with specific steps to be taken, independently and in concert with cities within their boundaries, to comply with the IWMA.

SWIS number: A unique number assigned by CalRecycle to each landfill, transfer station, transformation facility, materials recovery facility, or other CalRecycle-permitted waste processing facility, and used by the solid waste information system database. The first two digits signify the county where the facility is located; the last four digits identify the specific facility.

Taxable sales: Please see inflation-adjusted taxable sales.

Tipping fee: The fee charged for unloading solid waste at a landfill or transfer station.

Transfer station/processing facility: A facility which receives, handles, separates, converts, or otherwise processes solid waste, whose activities are governed by the Registration Permit tier or Full Solid Waste Facility Permit requirements. Such facilities typically transfer solid waste directly from one container to another, or from one vehicle to another for transport, or temporarily store solid waste prior to final disposal at a CalRecycle-permitted landfills or transformation facility. Please see Title 14, California Code of Regulations, sections 17400 et seq.

Transformation: Incineration, pyrolysis, distillation, gasification, or biological conversion other than composting. Transformation (Public Resources Code section 40201) does not include composting or biomass conversion. For purposes of diversion rate measurement, only waste sent to CalRecycle-permitted transformation facilities is used in diversion rate calculations. Transformation counts as disposal, except in special circumstances beginning in the year 2000, when limited amounts of waste sent to CalRecycle-permitted transformation facilities may count as diversion.

Transformation facility: A facility whose principal function is to convert, combust, or otherwise process solid waste by incineration, pyrolysis, destructive distillation, gasification, or to chemically or biologically process solid waste for the purpose of volume reduction, synthetic fuel production, or energy recovery. Transformation facilities do not include biomass conversion or composting facilities. Please see Title 14, California Code of Regulations, section 18720.

Waste characterization: The act of determining the types and amounts of materials in the disposed waste stream. Waste characterization studies typically involve the sorting and weighing of samples of disposed waste.

Waste diversion: Please see Diversion

Waste generation: Please see Generation.

Waste prevention: Please see Source reduction.

Waste reduction: The combined efforts of waste prevention, reuse, composting, and recycling practices. Some groups use this term synonymously with source reduction and waste prevention, so check how it is being used to avoid confusion. Typically, waste reduction includes waste prevention and recycling. A number of local jurisdictions in California, public interest groups, and a few States use waste reduction synonymously with waste prevention.

Waste stream: Waste material output of a community, region, or state.

White goods: Discarded major appliances of any color. These items are often enamel-coated. Examples: washing machines, clothes dryers, hot water heaters, stoves, and refrigerators. This definition does not include electronics, such as televisions and stereos, which are known as “brown goods.”

Xeriscaping: Landscaping using drought-tolerant or desert-like plants.