California Code of Regulations › Title 17 - Public Health › Division 3 - Air Resources › Chapter 1 - Air Resources Board › Subchapter 7.5 - Airborne Toxic Control Measures › Section 93115.4 - ATCM for Stationary CI Engines - Definitions

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) For purposes of this ATCM, the following
				  definitions apply:
(1) "Agricultural
				  Operations" means the growing and harvesting of crops or the raising of fowl or
				  animals for the primary purpose of making a profit, providing a livelihood, or
				  conducting agricultural research or instruction by an educational institution.
				  Agricultural operations do not include activities involving the processing or
				  distribution of crops or fowl.
(2)
				  "Agricultural Wind Machine" means a stationary CI engine-powered fan used
				  exclusively in agricultural operations to provide protection to crops during
				  cold weather by mixing warmer atmospheric air with the colder air surrounding a
				  crop.
(3) "Air Pollution Control
				  Officer (APCO)" means the person appointed pursuant to section
				  40750
				  of the Health and Safety Code, or his or her designated
				  representative.
(4) "Alternative
				  Fuel" means natural gas, propane, ethanol, or methanol.
(5) "Alternative Diesel Fuel" means any fuel
				  used in a CI engine that is not commonly or commercially known, sold, or
				  represented by the supplier as diesel fuel No. 1-D or No. 2-D, pursuant to the
				  specifications in ASTM D 975-81, "Standard Specification for Diesel Fuel Oils,"
				  as modified in May 1982, which is incorporated herein by reference, or an
				  alternative fuel, and does not require engine or fuel system modifications for
				  the engine to operate, although minor modifications (e.g., recalibration of the
				  engine fuel control) may enhance performance. Examples of alternative diesel
				  fuels include, but are not limited to, biodiesel and biodiesel blends that do
				  not meet the definition of CARB diesel fuel; Fischer-Tropsch fuels; emulsions
				  of water in diesel fuel; and fuels with a fuel additive, unless:
(A) the additive is supplied to the engine
				  fuel by an on-board dosing mechanism, or
(B) the additive is directly mixed into the
				  base fuel inside the fuel tank of the engine, or
(C) the additive and base fuel are not mixed
				  until engine fueling commences, and no more additive plus base fuel combination
				  is mixed than required for a single fueling of a single
				  engine.
(6) "Approach
				  Light System with Sequenced Flasher Lights in Category 1 and Category 2
				  Configurations (ALSF-1 and ALSF-2)" means high intensity approach lighting
				  systems with sequenced flashers used at airports to illuminate specified
				  runways during category II or III weather conditions, where category II means a
				  decision height of 100 feet and runway visual range of 1,200 feet, and category
				  III means no decision height or decision height below 100 feet and runway
				  visual range of 700 feet.
(7)
				  "Baseline" or "Baseline Emissions" means the emissions level of a diesel-fueled
				  engine using CARB diesel fuel as configured upon initial installation or by
				  January 1, 2003, whichever is later.
(8) "California Air Resources Board (CARB)
				  Diesel Fuel" means any diesel fuel that meets the specifications of vehicular
				  diesel fuel, as defined in title 13, CCR, sections
				  2281 and
				  2282.
(9) "Cancer Risk" means the characterization
				  of the probability of developing cancer from exposure to environmental chemical
				  hazards, in accordance with the methodologies specified in "The Air Toxics Hot
				  Spots Program Guidance Manual for Preparation of Health Risk Assessments,"
				  Office of Environmental Health Hazard Assessment, August 2003, which is
				  incorporated herein by reference.
(10) "Carbon Monoxide (CO)" is a colorless,
				  odorless gas resulting from the incomplete combustion of hydrocarbon
				  fuels.
(11) "Certified Engine"
				  means a CI engine that is certified to meet the Tier 1, Tier 2, Tier 3, or Tier
				  4 Off-Road CI Certification Standards as specified in title 13, California Code
				  of Regulations, section
				  2423.
(12) "Combustion Gas Turbine Engine" means an
				  internal combustion gas or liquid-fueled device consisting of compressor,
				  combustor, and power turbine used to power an electrical generator.
(13) "Compression Ignition (CI) Engine" means
				  an internal combustion engine with operating characteristics significantly
				  similar to the theoretical diesel combustion cycle. The regulation of power by
				  controlling fuel supply in lieu of a throttle is indicative of a compression
				  ignition engine.
(14) "Control
				  Area" means any electrical region in California that regulates its power
				  generation in order to balance electrical loads and maintain planned
				  interchange schedules with other control areas.
(15) "Cumulatively" means the aggregation of
				  hours or days of engine use, and any portion of an hour or day of engine use,
				  toward a specified time limit(s).
(16) "Date of Acquisition or Submittal" means
(A) For each District-approved permit or
				  district registration for stationary sources, the date the application for the
				  district permit or the application for engine registration was submitted to the
				  District. Alternatively, upon District approval, the date of purchase as
				  defined by the date shown on the front of the cashed check, the date of the
				  financial transaction, or the date on the engine purchasing agreement,
				  whichever is earliest.
(B) For an
				  engine subject to neither a district permit program nor a district registration
				  program for stationary sources, the date of purchase as defined by the date
				  shown on the front of the cashed check, the date of the financial transaction,
				  or the date on the engine purchasing agreement, whichever is
				  earliest.
(17) "Date of
				  Initial Installation" means one of the following, whichever is earlier:
(A) the date on which a new stationary
				  diesel-fueled engine is placed at a location in order to be operated for the
				  first time since delivery from the manufacturer or distributor, or,
(B) for the purposes of a Tier 1- or Tier
				  2-certified stationary diesel agricultural engine complying with section
				  93115.8(b)(3)
				  emission standards, one year from January 1 of the model year of such
				  engine.
(18) "Demand
				  Response Program (DRP)" means a program for reducing electrical demand using an
				  Interruptible Service Contract (ISC) or Rolling Blackout Reduction Program
				  (RBRP).
(19) "Diesel Fuel" means
				  any fuel that is commonly or commercially known, sold, or represented by the
				  supplier as diesel fuel, including any mixture of primarily liquid hydrocarbons
				  - organic compounds consisting exclusively of the elements carbon and hydrogen
				  - that is sold or represented by the supplier as suitable for use in an
				  internal combustion, compression-ignition engine.
(20) "Diesel-Fueled" means fueled by diesel
				  fuel, CARB diesel fuel, or jet fuel, in whole or part.
(21) "Diesel Particulate Filter (DPF)" means
				  an emission control technology that reduces PM emissions by trapping the
				  particles in a flow filter substrate and periodically removes the collected
				  particles by either physical action or by oxidizing (burning off) the particles
				  in a process called regeneration.
(22) "Diesel Particulate Matter (PM)" means
				  the particles found in the exhaust of diesel-fueled CI engines as determined in
				  accordance with the test methods identified in section
				  93115.14.
(23) "Digester Gas" is any gas derived from
				  anaerobic decomposition of organic matter.
(24) "Direct-Drive Emergency Standby Fire
				  Pump Engines" means engines directly coupled to pumps exclusively used in
				  water-based fire protection systems.
(25) "District" has the same meaning as
				  defined in the California Health and Safety Code, Section
				  39025.
(26) "DRP Engine" means an engine that is
				  enrolled in a DRP.
(27) "Dual-fuel
				  Diesel Pilot Engine" means a dual-fueled engine that uses diesel fuel as a
				  pilot ignition source at an annual average ratio of less than 5 parts diesel
				  fuel to 100 parts total fuel on an energy equivalent basis.
(28) "Dual-fuel Engine" means any CI engine
				  that is engineered and designed to operate on a combination of alternative
				  fuels, such as compressed natural gas (CNG) or liquefied petroleum gas (LPG)
				  and diesel fuel or an alternative diesel fuel. These engines have two separate
				  fuel systems, which inject both fuels simultaneously into the engine combustion
				  chamber.
(29) "Emergency Standby
				  Engine" means a stationary engine that meets the criteria specified in (A),
				  (B), and (C) and any combination of (D) or (E) or (F) below:
(A) is installed for the primary purpose of
				  providing electrical power or mechanical work during an emergency use and is
				  not the source of primary power at the facility; and
(B) is operated to provide electrical power
				  or mechanical work during an emergency use; and
(C) is not operated to supply power to an
				  electric grid or does not supply power as part of a financial arrangement with
				  any entity, except as allowed in sections
				  93115.6(a)(2), (b)(1) or
				  (c): and
(D) is operated under limited circumstances
				  for maintenance and testing, emissions testing, or initial start-up testing, as
				  specified in sections
				  93115.6(a), (b), and
				  (c); or
(E) is operated under limited circumstances
				  in response to an impending outage, as specified in sections
				  93115.6(a), (b), and
				  (c); or
(F) is operated under limited circumstances
				  under a DRP as specified in section
				  93115.6(c).
(30) "Emergency Use" means providing
				  electrical power or mechanical work during any of the following events and
				  subject to the following conditions:
(A) the
				  failure or loss of all or part of normal electrical power service or normal
				  natural gas supply to the facility:
1. which
				  is caused by any reason other than the enforcement of a contractual obligation
				  the owner or operator has with a third party or any other party; and
2. which is demonstrated by the owner or
				  operator to the district APCO's satisfaction to have been beyond the reasonable
				  control of the owner or operator;
(B) the failure of a facility's internal
				  power distribution system:
1. which is caused
				  by any reason other than the enforcement of a contractual obligation the owner
				  or operator has with a third party or any other party; and
2. which is demonstrated by the owner or
				  operator to the district APCO's satisfaction to have been beyond the reasonable
				  control of the owner or operator;
(C) the pumping of water or sewage to prevent
				  or mitigate a flood or sewage overflow;
(D) the pumping of water for fire suppression
				  or protection;
(E) the powering of
				  ALSF-1 and ALSF-2 airport runway lights under category II or III weather
				  conditions;
(F) the pumping of
				  water to maintain pressure in the water distribution system for the following
				  reasons:
1. a pipe break that substantially
				  reduces water pressure; or
2. high
				  demand on the water supply system due to high use of water for fire
				  suppression; or
3. the breakdown of
				  electric-powered pumping equipment at sewage treatment facilities or water
				  delivery facilities; or
(G) day-of-rocket launch and day of space
				  plane vehicle re-entry/landing system checks and tracking performed (in
				  parallel with grid power) by the United States Department of Defense at Command
				  Transmitter sites (also known as "CT" sites) that occur within the 24-hour time
				  period associated with the scheduled time of the launch or
				  re-entry/landing.
(31)
				  "Emission Control Strategy" means any device, system, or strategy employed with
				  a diesel-fueled CI engine that is intended to reduce emissions including, but
				  not limited to, particulate filters, diesel oxidation catalysts, selective
				  catalytic reduction systems, fuel additives used in combination with
				  particulate filters, alternative diesel fuels, and any combination of the
				  above.
(32) "End User" means any
				  person who purchases or leases a stationary diesel-fueled engine for operation
				  in California. Persons purchasing engines for the sole purpose of resale are
				  not considered "end users."
(33)
				  "Enrolled" means either of the following, whichever applies:
(A) the ISC is in effect during the specified
				  time period for an engine in an ISC; or
(B) the date the engine is entered into the
				  RBRP.
(34) "Executive
				  Officer" means the executive officer of the Air Resources Board, or his or her
				  designated representative.
(35)
				  "Facility" means one or more contiguous properties, in actual physical contact
				  or separated solely by a public roadway or other public right-of-way, under
				  common ownership on which engines operate.
(36) "Fuel Additive" means any substance
				  designed to be added to fuel or fuel systems or other engine-related engine
				  systems such that it is present in-cylinder during combustion and has any of
				  the following effects: decreased emissions, improved fuel economy, increased
				  performance of the engine; or assists diesel emission control strategies in
				  decreasing emissions, or improving fuel economy or increasing performance of
				  the engine.
(37) "Generator Set"
				  means a CI engine coupled to a generator that is used as a source of
				  electricity.
(38) "Hazard Index"
				  means the sum of individual acute or chronic hazard quotients for each
				  substance affecting a particular toxicological endpoint, as determined in
				  accordance with the requirements of "The Air Toxics Hot Spots Program Guidance
				  Manual for Preparation of Health Risk Assessments," Office of Environmental
				  Health Hazard Assessment, August 2003, which is incorporated herein by
				  reference.
(39) "HC" means the sum
				  of all hydrocarbon air pollutants.
(40) "Health Facility" has the same meaning
				  as defined in Section
				  1250
				  of the California Health and Safety Code.
(41) "In-Use" means a CI engine that is not a
				  "new" CI engine.
(42) "Initial
				  Start-up Testing" means operating the engine or supported equipment to ensure
				  their proper performance either:
(A) for the
				  first time after installation of a stationary diesel-fueled CI engine at a
				  facility, or
(B) for the first time
				  after installation of emission control equipment on an in-use stationary
				  diesel-fueled CI engine.
(43) "Interruptible Service Contract (ISC)"
				  means a contractual arrangement in which a utility distribution company
				  provides lower energy costs to a nonresidential electrical customer in exchange
				  for the ability to reduce or interrupt the customer's electrical service during
				  a Stage 2 or Stage 3 alert, or during a transmission emergency.
(44) "Jet Fuel" means fuel meeting any of the
				  following specifications:
(A) ASTM D 1655-02,
				  "Standard Specification for Aviation Turbine Fuels," which is incorporated
				  herein by reference. Jet fuels meeting this specification include Jet A, Jet
				  A-1, and Jet B;
(B) Military Detail
				  (MIL-DTL) 5624T, "Turbine Fuels, Aviation, Grades Jet Propellant (JP) JP-4,
				  JP-5, and JP-5/JP8 ST," dated September 18, 1998, which is incorporated herein
				  by reference; and
(C) Military Test
				  (MIL-T) 83133E, "Turbine Fuels, Aviation, Kerosene Types, North Atlantic Treaty
				  Organization (NATO) F-34 (JP-8), NATO F-35, and JP-8+100," dated April 1, 1999,
				  which is incorporated herein by reference.
(45) "Landfill Gas" means any gas derived
				  through any biological process from the decomposition of waste buried within a
				  waste disposal site.
(46)
				  "Location" means any single site at a facility.
(47) "Maintenance and Testing" means
				  operating an emergency standby CI engine to:
(A) evaluate the ability of the engine or its
				  supported equipment to perform during an emergency. "Supported Equipment"
				  includes, but is not limited to, generators, pumps, transformers, switchgear,
				  uninterruptible power supply, and breakers; or
(B) facilitate the training of personnel on
				  emergency activities; or
(C)
				  provide electric power for the facility when the utility distribution company
				  takes its power distribution equipment offline to service that equipment for
				  any reason that does not qualify as an emergency use; or
(D) provide additional hours of operation to
				  perform testing on an engine that has experienced a breakdown or failure during
				  maintenance.
Upon air district approval, these additional hours of
					 operation will not be counted in the maximum allowable annual hours of
					 operation for the emergency standby CI engine that provided the electrical
					 power.
(48)
				  "Maximum Rated Power" means the maximum brake kilowatt output of an engine as
				  determined from any of the following, whichever is the greatest:
(A) the manufacturer's sales and service
				  literature,
(B) the nameplate of
				  the unit, or
(C) if applicable, as
				  shown in the application for certification of the engine.
(49) "Model Year" means the stationary CI
				  engine manufacturer's annual production period, which includes January 1st of a
				  calendar year, or if the manufacturer has no annual production period, the
				  calendar year.
(50) "New" or "New
				  CI Engine" means the following:
(A) a
				  stationary CI engine installed at a facility after January 1, 2005, including
				  an engine relocated from an off-site location after January 1, 2005, except the
				  following shall be deemed in-use engines:
1. a
				  replacement stationary CI engine that is installed to temporarily replace an
				  in-use engine while the in-use engine is undergoing maintenance and testing,
				  provided the replacement engine emits no more than the in-use engine, and the
				  replacement engine is not used more than 180 days cumulatively in any 12-month
				  rolling period;
2. an engine for
				  which a district-approved application for a district permit or engine
				  registration for stationary sources was submitted to the District prior to
				  January 1, 2005, even though the engine was installed after January 1,
				  2005;
3. an engine that is one of
				  four or more engines owned by an owner or operator and is relocated prior to
				  January 1, 2008, to an offsite location that is owned by the same owner or
				  operator;
4. an engine, or
				  replacement for an engine, used in agricultural operations that is relocated
				  within the same facility or to another facility under the same owner or
				  operator for use in agricultural operations, unless the engine is sited where
				  an engine is not currently located and has not been previously
				  located.
5. an engine installed at
				  a facility prior to January 1, 2005, and relocated within the same facility
				  after January 1, 2005.
6. a model
				  year 2004 or 2005 engine purchased prior to January 1, 2005, for use in
				  California. The date of purchase is defined by the date shown on the front of
				  the cashed check, the date of the financial transaction, or the date on the
				  engine purchasing agreement, whichever is earliest.
7. a greater than 50 bhp Tier 1- or Tier
				  2-certified stationary diesel agricultural engine installed after January 1,
				  2005, shall be considered a new engine subject to the requirements of section
				  93115.8(a) until
				  12 years after the date of initial installation, at which time, it shall be
				  considered an in-use engine subject to the requirements of section
				  93115.8(b)(3).
(B) a stationary CI engine that has been
				  reconstructed after January 1, 2005, shall be deemed a new engine unless the
				  sum of the costs of all individual reconstructions of that engine after January
				  1, 2005, is less than 50% of the lowest-available purchase price, determined at
				  the time of the most recent reconstruction, of a complete, comparably-equipped
				  new engine (within ±10% of the reconstructed engine's brake horsepower
				  rating).
For purposes of this definition, the cost of reconstruction
					 and the cost of a comparable new engine shall not include the cost of equipment
					 and devices required to meet the requirements of this
					 ATCM.
(51)
				  "Nitrogen Oxides (NOx)" means compounds of nitric oxide (NO), nitrogen dioxide
				  (NO2), and other oxides of nitrogen, which are typically
				  created during combustion processes and are major contributors to smog
				  formation and acid deposition.
(52)
				  "Noncertified Engine" means a CI engine that is not certified to Off-Road CI
				  Certification Standards as specified in title 13, California Code of
				  Regulations, section
				  2423.
(53) "Non-Methane Hydrocarbons (NMHC)" means
				  the sum of all hydrocarbon air pollutants except methane.
(54) "Outer Continental Shelf (OCS)" shall
				  have the meaning provided by section
				  2 of the Outer Continental Shelf
				  Lands Act (43 U.S.C. Section
				  1331 et seq.).
(55) "Owner or Operator" means any person
				  subject to the requirements of this ATCM, including but not limited to:
(A) an individual, trust, firm, joint stock
				  company, business concern, partnership, limited liability company, association,
				  or corporation including but not limited to, a government corporation;
				  and
(B) any city, county, district,
				  commission, the state or any department, agency, or political subdivision
				  thereof, any interstate body, and the federal government or any department or
				  agency thereof to the extent permitted by law.
(56) "Particulate Matter (PM)" means the
				  particles found in the exhaust of CI engines, which may agglomerate and adsorb
				  other species to form structures of complex physical and chemical
				  properties.
(57) "Portable CI
				  Engine" means a compression ignition (CI) engine designed and capable of being
				  carried or moved from one location to another, except as provided in section
				  93115.4(a)(72).
				  Indicators of portability include, but are not limited to, wheels, skids,
				  carrying handles, dolly, trailer, or platform. The provisions of this
				  definition notwithstanding, an engine with indicators of portability that
				  remains at the same facility location for more than 12 consecutive rolling
				  months or 365 rolling days, whichever occurs first, not including time spent in
				  a storage facility, shall be deemed a stationary engine.
(58) "Prime CI Engine" means a stationary CI
				  engine that is not an emergency standby CI engine.
(59) "Prioritization Score" means the numeric
				  value used to rank facilities in order of their potential to pose significant
				  risk to human receptors. Prioritization scores are calculated per the process
				  described in the "CAPCOA Air Toxics 'Hot Spots' Program Facility Prioritization
				  Guidelines," California Air Pollution Control Officer's Association (CAPCOA),
				  July 1990, which is incorporated herein by reference.
(60) "Rated Brake Horsepower (bhp)" means:
(A) for in-use engines, the maximum brake
				  horsepower output of an engine as determined from any of the following,
				  whichever reflects the engine's configuration as of January 1, 2005:
1. the manufacturer's sales and service
				  literature;
2. the nameplate of the
				  engine; or
3. if applicable, as
				  shown in the application for certification of the engine;
(B) for new engines, the maximum brake
				  horsepower output of an engine as determined from any of the following,
				  whichever reflects the engine's configuration upon the engine's initial
				  installation at the facility:
1. the
				  manufacturer's sales and service literature;
2. the nameplate of the engine; or
3. if applicable, as shown in the application
				  for certification of the engine.
(61) "Receptor location" means any location
				  outside the boundaries of a facility where a person may experience exposure to
				  diesel exhaust due to the operation of a stationary diesel-fueled CI engine.
				  Receptor locations include, but are not limited to, residences, businesses,
				  hospitals, daycare centers, and schools.
(62) "Reconstruction" means the rebuilding of
				  the engine or the replacement of engine parts, including pollution control
				  devices, but excluding operating fluids; lubricants; and other consumables such
				  as air filters, fuel filters, and glow plugs that are subject to regular
				  replacement.
(63) "Remotely-Located
				  Agricultural Engine" means a stationary diesel-fueled CI engine used in
				  agriculture that is:
(A) located in a federal
				  ambient air quality area that is designated as unclassifiable or attainment for
				  all PM and ozone national ambient air quality standards (title 40, Code of
				  Federal Regulations, section
				  81.305); and
(B) located more than one-half mile from any
				  residential area, school, or hospital.
(64) "Residential Area" means three or more
				  permanent residences (i.e., homes) located anywhere outside the facility's
				  property.
(65) "Rolling Blackout
				  Reduction Program (RBRP)" means a contractual arrangement, implemented by the
				  San Diego Gas and Electric Company (SDG&E) in San Diego County, in which
				  SDG&E pays a nonresidential electrical customer, in accordance with the
				  most current RBRP Schedule, in exchange for the customer using its
				  diesel-fueled engines to reduce its electrical demand upon request by SDG&E
				  during either a Stage 3 alert or a transmission emergency.
(66) "Rotating Outage" means a controlled,
				  involuntary curtailment of electrical power service to consumers as ordered by
				  the Utility Distribution Company.
(67) "School" or "School Grounds" means any
				  public or private school used for purposes of the education of more than 12
				  children in kindergarten or any of grades 1 to 12, inclusive, but does not
				  include any private school in which education is primarily conducted in a
				  private home(s). "School" or "School Grounds" includes any building or
				  structure, playground, athletic field, or other areas of school property but
				  does not include unimproved school property.
(68) "Selective Catalytic Reduction (SCR)
				  System" means an emission control system that reduces NOx emissions through the
				  catalytic reduction of NOx in diesel exhaust by injecting nitrogen-containing
				  compounds into the exhaust stream, such as ammonia or urea.
(69) "Seller" means any person who sells,
				  leases, or offers for sale any stationary diesel-fueled engine directly to end
				  users.
(70) "Stage 2 Alert" means
				  an official forecast or declaration by the California Independent System
				  Operator that the operating reserves of electrical power will fall or have
				  fallen below 5 percent.
(71) "Stage
				  3 Alert" means an official forecast or declaration by the California
				  Independent System Operator that the operating reserves of electrical power
				  will fall or have fallen below 1.5 percent.
(72) "Stationary CI Engine" means a CI engine
				  that is designed to stay in one location, or remains in one location. A CI
				  engine is stationary if any of the following are true:
(A) the engine or its replacement is attached
				  to a foundation, or if not so attached, resides at the same location for more
				  than 12 consecutive months. Any engine such as backup or standby engines, that
				  replaces an engine at a location and is intended to perform the same or similar
				  function as the engine(s) being replaced, shall be included in calculating the
				  consecutive time period. The cumulative time of all engine(s), including the
				  time between the removal of the original engine(s) and installation of the
				  replacement engine(s), will be counted toward the consecutive time period;
				  or
(B) the engine remains or will
				  reside at a location for less than 12 consecutive months if the engine is
				  located at a seasonal source and operates during the full annual operating
				  period of the seasonal source, where a seasonal source is a stationary source
				  that remains in a single location on a permanent basis (at least two years) and
				  that operates at that single location at least three months each year;
				  or
(C) the engine is moved from one
				  location to another in an attempt to circumvent the 12 month residence time
				  requirement. The period during which the engine is maintained at a storage
				  facility shall be excluded from the residency time
				  determination.
(73)
				  "Stationary Source" means any building, structure, facility, or installation
				  that emits any pollutant directly or as fugitive emissions. Building,
				  structure, facility, or installation includes all pollutant emitting activities
				  which:
(A) are under the same ownership or
				  operation, or which are owned or operated by entities which are under common
				  control; and
(B) belong to the same
				  industrial grouping either by virtue of falling within the same two-digit
				  standard industrial code or by virtue of being part of a common industrial
				  process, manufacturing process, or connected process involving a common raw
				  material; and
(C) are located on
				  one or more contiguous or adjacent properties.
(74) "Stock Engine" means a certified CI
				  engine that has never been placed in service and is part of a supply of engines
				  offered for sale, rent, or lease by a person or firm who offers for sale, rent,
				  or lease engines and related equipment for profit.
(75) "Transmission Constrained Area" means
				  the specific location that is subject to localized operating reserve
				  deficiencies due to the failure of the normal electrical power distribution
				  system.
(76) "Transmission
				  Emergency" means an official forecast or declaration by the California
				  Independent System Operator that the available electrical power transmission
				  capacity to a transmission constrained area is insufficient and may result in
				  an uncontrolled local grid collapse in the transmission constrained
				  area.
(77) "Utility Distribution
				  Company" means one of several organizations that control energy transmission
				  and distribution in California. Utility Distribution Companies include, but are
				  not limited to, the Pacific Gas and Electric Company, the San Diego Gas and
				  Electric Company, Southern California Edison, Los Angeles Department of Water
				  and Power, the Imperial Irrigation District, and the Sacramento Municipal
				  Utility District.
(78)
				  "Verification Procedure, Warranty and In-Use Compliance Requirements for In-Use
				  Strategies to Control Emissions from Diesel Engines (Verification Procedure)"
				  means the ARB regulatory procedure codified in title 13, CCR, sections
				  2700-2710, which is incorporated
				  herein by reference, that engine manufacturers, sellers, owners, or operators
				  may use to verify the reductions of diesel PM or NOx from in-use diesel engines
				  using a particular emission control strategy.
(79) "Verified Diesel Emission Control
				  Strategy" means an emission control strategy, designed primarily for the
				  reduction of diesel PM emissions, which has been verified pursuant to the
				  "Verification Procedure."