(Adopted: 07/08/88; Amended: 05/05/89; Amended: 03/02/90; 

Amended: 06/28/90; Amended: 11/02/90; Amended: 12/07/90; 

Amended: 08/02/91; Amended: 09/06/91; Amended: 12/09/94; 

Amended: 03/08/96; Amended: 06/13/97; Amended: 07/20/99; 

Amended: mmddyy) 

AVAQMD Rule 1151 1151-1 

Motor Vehicle and Mobile Equipment Coating Operations 

D6, 05/14/12 

Rule 1151 

Motor Vehicle aAnd Mobile Equipment Coating Operations 

(A) Purpose and ApplicabilityGeneral

(1) Purpose 

(a) The purpose of this rule is to reduce emissions of Volatile Organic Compounds 

(VOCs), from Coatings and solvents applied associated with the Refinishing on

of Motor Vehicles, Mobile Equipment and their Associated Pparts and 

componentsComponents. [Changes derived from CARB’s SCM for Automotive 

Coatings, section 1]

(2) Applicability 

(a) This ruleThis rule is applicable to:

(i) Any Person who uses, applies, or, solicits the use or application of any 

Automotive Coating or associated solvent within the District.

(ii) Any Person who supplies, sells, offers for sale, manufactures, or 

distributes any Automotive Coating or associated solvent for use within 

the District.

(b) This rule does not apply to:

(i) Any Coating applied to Motor Vehicles or Mobile Equipment, or their 

Associated Parts and Components, during manufacture on an Assembly 

Line.

(ii) Any Automotive Coating or associated solvent that is offered for sale, 

sold or manufactured for use outside of the District or for shipment to 

other manufacturers for reformulation or repackaging.

(iii) Any Stencil Coating Product.

(iv) Any Aerosol Coating Products that are in compliance with regulations 

and requirements adopted by the California Air Resources Board (CCR, 

Title 17, Subchapter 8.5, Section 94522). [Definition modified in 

response to ARB’s comment to do so in review of D2]

(v) Any Automotive Coating that is sold, supplied, or offered for sale in 

one-half (0.5) fluid ounce or smaller containers intended to be used by 
1151-2 AVAQMD Rule 1151 

Motor Vehicle and Mobile Equipment Coating Operations 

D6; 05/14/12 

the general public to repair tiny surface imperfections. [This section 

added in response to USEPA’s comment of the preliminary draft 

requesting to add section here stating what the rule does not apply to. 

Reordering in response to ARB comment of D2]

applies to all Commercial and Non-Commercial Coating Applications to Group I 

Vehicles and Equipment and Group II Vehicles and their parts and components 

at facilities involved in the production, modification, or refinishing of Motor 

Vehicles and Mobile Equipment.

(b) The application of Coatings on a vehicle which is not self-propelled, such as 

trailers and mobile homes, are subject to other source specific rules contained in 

Regulation XI. [Changes derived from CARB’s SCM for Automotive Coatings, 

section 2]

(B) Definitions 

For the purposes of this rule, the following definitions shall apply: 

(1) “Adhesion Promoter” - A Coating which is labeled and formulated to be applied to 

uncoated plastic surfaces to facilitate bonding of subsequent Coatings, and on which, a 

subsequent Coating is applied. a Coating applied over both an existing non-sanded 

Topcoat, and the coated area immediately adjacent to the non-sanded Topcoat, to 

promote the adhesion of a subsequent Topcoat. No Topcoat, Primer, or Primer Surfacer 

shall be classified as an Adhesion Promoter. [Changes to definition derived from 

CARB’s SCM for Automotive Coatings, section 3.18. Last sentence deleted as it 

conflicted with definition (B)(19), Coating Categories]

(2) “Aerosol Coating Product” - a A pressurized Coating product containing pigments or 

resins that dispenses product ingredients by means of a propellant, and is packaged in a 

disposable can for hand-held application, or for use in specialized equipment for ground 

traffic/marking applications.

(3) “Air Pollution Control Officer (APCO)” - The person appointed by the Air Pollution 

Control Board and assigned full time to manage and direct the business and operations 

of the district. The Air Pollution Control Officer is also the District Director, and is that 

person described for State purposes as the Air Pollution Control Officer. [Definition 

added for clarification purposes only]

(4) “Alternative Emission Control Plan” - A plan which allows a source to demonstrate an 

alternative method of rule compliance.

(35) “Anti-Glare Safety Coating” - a Coating formulated to eliminate glare for safety 

purposes on interior surfaces of a vehicle and which shows a reflectance of 25 or less on 

a 60° gloss meter.
AVAQMD Rule 1151 1151-3 

Motor Vehicle and Mobile Equipment Coating Operations 

D6; 05/14/12 

(4) “Basecoat” - a pigmented Topcoat which is the first Topcoat applied as part of a 

Multistage Topcoat System. [Deleted as this coating category no longer exists in 

CARB’s SCM for Automotive Coatings]

(5) “Basecoat/Clearcoat Topcoat System” - a Multistage Topcoat System composed of a 

Basecoat portion and a Clearcoat portion.

(a) The Grams of VOC per Liter of Coating Less Water and Less Exempt 

Compounds of a Basecoat/Clearcoat Topcoat System shall be calculated 

according to the following formula:

 VOCbc + 2 VOCcc

VOCms =

3

Where:

VOCms = the composite Grams of VOC per Liter of Coating Less Water and 

Less Exempt Compounds to be used for compliance determination 

under the Multistage Topcoat System Coating category.

VOCbc = the Grams of VOC per Liter of Coating Less Water and Less 

Exempt Compounds as applied, of any given Basecoat.

2 VOCcc = two times the Grams of VOC per Liter of Coating Less Water and 

Less Exempt Compounds as applied, of any given Clearcoat.

(b) The VOC per Volume of Applied Solids of a Basecoat/Clearcoat Topcoat 

System shall be calculated according to the following formula:

 VOC-Sbc + 2 VOC-Scc

VOC-Sms =

3

Where:

VOC-Sms = the composite VOC per Volume of Applied Solids to be used for 

compliance determination under subsection (C)(1)(a)(ii)2.

VOC-Sbc = the VOC per Volume of Applied Solids of any given basecoat, 

calculated according to the formula in subsection (B)(51).

2 VOC-Scc = two times the VOC per Volume of Applied Solids of any given 

clearcoat, calculated according to the formula in subsection 

(B)(51). [Deleted to synchronize definitions with CARB’s SCM for 

Automotive Coatings. Definition is no longer necessary]
1151-4 AVAQMD Rule 1151 

Motor Vehicle and Mobile Equipment Coating Operations 

D6; 05/14/12 

(6) “Assembly Line” - An arrangement of industrial equipment and workers in which the 

product passes from one specialized operation to another until complete by either 

automatic or manual means. [Definition derived from CARB’s SCM for Automotive 

Coatings Section 3.3]

(7) “Associated Parts and Components” - Structures, devices, pieces, modules, sections, 

assemblies, subassemblies, or elements of Motor Vehicles or Mobile Equipment that are 

designed to be part of Motor Vehicles or Mobile Equipment but which are not attached 

to Motor Vehicles or Mobile Equipment at the time of coating the structure, device, 

piece, module, section, assembly, subassembly, or element. The Associated Parts and 

Components definition does not include circuit boards. [Definition derived from 

CARB’s SCM for Automotive Coatings Section 3.4]

(8) “ASTM” - American Society for Testing and Materials [Definition added for 

clarification purposes only]

(9) “Automotive Coating” - Any coating or Automotive Coating Component, used or 

recommended for use, in Motor Vehicle or Mobile Equipment Refinishing, service, 

maintenance, repair, restoration, or modification, except metal plating activities. Any 

reference to automotive Refinishing or Automotive Coating made by a Person, on the 

container, or in product literature constitutes a recommendation for use in Motor 

Vehicle or Mobile Equipment Refinishing. [Definition derived from CARB’s SCM for 

Automotive Coatings Section 3.5]

(10) “Automotive Coating Component” - Any portion of a coating, including, but not limited 

to, a Reducer or thinner, toner, hardener, and Additive, which is recommended by any 

person to distributors or end-users, for use in an Automotive Coating, or which is 

supplied for or used in an Automotive Coating. The raw materials used to produce the 

components are not considered Automotive Coating Components. [Definition derived 

from CARB’s SCM for Automotive Coatings Section 3.6]

(11) “Automotive Refinishing Facility” - Any shop, business, location, or parcel of land 

where Motor Vehicles or Mobile Equipment or their Associated Parts and Components 

are coated, including autobody collision repair shops. Automotive Refinishing Facility 

does not include the original equipment manufacturing plant where the Motor Vehicle 

or Mobile Equipment is completely assembled. [Derived from SCAQMD Rule 1151,

section (c)(7)]

(612) “Bright Metal Trim Repair Coating” - a A Coating applied directly to chrome-plated 

metal surfaces for the purpose of appearance.

(713) “Bus” - any Any Motor Vehicle having a manufacturer's gross vehicle weight of more 

than 8600 pounds and which is designed primarily for the transportation of persons, and 

having a design capacity of over 12 persons.
AVAQMD Rule 1151 1151-5 

Motor Vehicle and Mobile Equipment Coating Operations 

D6; 05/14/12 

(8) “Clearcoat” - a Topcoat which contains no pigments or only transparent pigments and 

which is the final Topcoat applied as a part of a Multistage Topcoat System. [Replaced 

with “Clear Coating”]

(14) “CARB” – California Air Resources Board [Definition added in response to USEPA’s 

comment to do so on the preliminary draft.]

(15) “CFR” - Code of Federal Regulations [Definition added for clarification purposes only]

(16) “Cleaning Operations” - The removal of loosely held uncured adhesives, inks, Coatings, 

or contaminants, including, but not limited to, dirt, soil, or grease, from Motor Vehicles, 

Mobile Equipment, Associated Parts and Components, substrates, parts, products, tools, 

machinery, equipment, or general work areas. [Definition derived from CARB’s SCM 

for Automotive Coatings Section 3.9]

(17) “Clear Coating” - Any coating that contains no pigments and is labeled and formulated 

for application over a Color Coating or Clear Coating. [Definition derived from CARB’s 

SCM for Automotive Coatings Section 3.10]

(918) “Coating” - a A material which is applied to a surface and which forms a film in order 

to beautify and/or protect such surface.

(19) “Coating Categories” - The table below shows Coating Categories prior to the 

05/01/2013 compliance deadline, and the corresponding Coating Categories after the 

05/01/2013 compliance deadline:

Comparison of Coating Categories

Coating Categories Prior to 05/01/2013 Coating Categories 05/01/13 and After

Adhesion Promoter Adhesion Promoter

Anti-glare Safety Coating Clear Coating, Color Coating, or SingleStage Coating

Bright Metal Trim Repair Coating Any Other Coating Type

Camouflage Color Coating

Elastomeric Materials Primer, Color Coating, Clear Coating, 

Single-stage Coating, or Underbody 

Coating

General Topcoat Single-Stage Coating

Gloss Flatteners (aka Low-Gloss Coatings) Clear Coating

Heat Resistant Primer, Color Coating, Clear Coating, or 

Single-stage Coating

Impact Resistant Coating Single-Stage Coating, Clear Coating, 

Underbody Coating, or Truck Bed Liner 

Coating
1151-6 AVAQMD Rule 1151 

Motor Vehicle and Mobile Equipment Coating Operations 

D6; 05/14/12 

Jambing Clear Coating

Metallic/Iridescent Topcoat Single-Stage Coating

Multi-Color Coatings Multi-Color Coating

Multi-Color Multi-Stage Multi-Color Coating

Multi-Color Stage System Color Coating & Clear Coating

Multi-Color Topcoat Multi-Color Coating

Precoat Primer

Pretreatment Wash Primer Pretreatment Coating

Primer Primer

Primer Sealer Primer Sealer 

Primer Surfacer Primer

Rubberized Asphaltic Underbody Underbody Coating

Single-Stage Metallic/Iridescent Coating Single-Stage Coating

Single-Stage Nonmetallic/Noniridescent 

Topcoat

Single-Stage Coating

Solid Color Topcoat Single-Stage Coating

Specialty Coatings This generic category has been 

eliminated an replaced with specific 

categories for the various coatings 

previous grouped together and are 

adressed below

Temporary Protective Coating Temporary Protective Coating

Topcoats Single-Stage Coating

Uniform Finish Blenders Uniform Finish Coating

Water Hold-Out Coating Primer

Weld-Thru Coatings Primer

(20) “Color Coating” - Any pigmented Coating, excluding Adhesion Promoters, Primers, 

and Multi-color Coatings, that requires a subsequent Clear Coating and which is applied 

over a Primer, Adhesion Promoter, or Color Coating. Color Coatings include 

metallic/iridescent Color Coatings. [Definition derived from CARB’s SCM for 

Automotive Coatings Section 3.12. “Color Coating” was added to the definition to 

ARB’s comment on D2]

(10) “Commercial and Non-Commercial Coating Applications” – facilities with Coating 

operations which include, but are not limited to: autobody repair/paint shops, 

production autobody paint shops, new car dealer repair/paint shops, fleet operator 

repair/paint shops, custom-made car fabrication facilities, truck body-builders, and 

residences. [Deleted as this coating application no longer exists in CARB’s SCM for 

Automotive Coatings]
AVAQMD Rule 1151 1151-7 

Motor Vehicle and Mobile Equipment Coating Operations 

D6; 05/14/12 

(1121) “Elastomeric Materials” - Coatings which are specifically formulated and applied over 

coated or uncoated flexible plastic substrates for the purpose of adhesion.

(1222) “Electrostatic Spray Application” - a A method of applying Coatings whereby the 

atomized Coating droplets are charged and subsequently deposited on the substrate by 

electrostatic attraction. [Changes made for clarification purposes only]

(23) “Emission Control System” - Any combination of capture systems and control devices 

used to reduce VOC emissions from Automotive Coating operations. [Changes to 

definition derived from CARB’s SCM for Automotive Coatings Section3.14]

(1324) “Exempt Compounds” - those Those compounds listed in 40 CFR 51.100(sS)(1).

[Changes to definition derived from MDAQMD’s Rule 1116 Section (B)(18)]

(14) “General Topcoat” - any type of Topcoat except Metallic/Iridescent Topcoat, and any 

Topcoat applied as part of a Multistage Topcoat System. [Deleted to synchronize 

definitions with CARB’s SCM for Automotive Coatings. Definition is no longer 

necessary]

(25) “Finish” - The Coating of incomplete vehicles, their parts and components, or Mobile 

Equipment for which the original Coating was not applied from an Original Equipment 

Manufacturer (OEM) plant Coating Assembly Line. [Derived from MDAQMD’s Rule 

1116 Section (B)(19)]

(1526) “Grams oOf VOC per Liter of Coating Less Water and Less Exempt Compounds (VOC 

Content)” - the The weight of VOC per combined volume of VOC and Coating solids 

and shall be calculated by the following equation:

 

M W ES

S W ES

VOC LoC V V V

W W W G  

  / 

Grams of VOC per Liter of Coating, Less Ws - Ww - Wes

Water and Less Exempt Compounds = 

Vm - Vw - Ves
1151-8 AVAQMD Rule 1151 

Motor Vehicle and Mobile Equipment Coating Operations 

D6; 05/14/12 

Where: 

GVOC/LoC = Grams VOC/L of Coating Less Water and Exempt 

WsWS = weight of volatile compounds in grams 

WwWW = weight of water in grams 

WesWES = weight of Exempt Compounds in grams 

VmVM = volume of material in liters 

VwVW = volume of water in liters 

VesVES = volume of Exempt Compounds in liters 

[Changes are for clarification purposes only]

(1627) “Grams of VOC per Liter of Material” - the The weight of VOC per volume of material 

as calculated by the following equation:

M

S W ES

VOC LoM V

W W W G   / 

Ws - Ww - Wes

Grams of VOC per Liter of Material =

Vm

 Where: 

GVOC/LoM = Grams VOC/L of Material 

WsWS = weight of volatile compounds in grams 

WwWW = weight of water in grams 

WesWES = weight of exempt compounds in grams 

VmVM = volume of material in liters 

[Changes are for clarification purposes only]

(17) “Group I Vehicles and Equipment” - large-sized Trucks, Buses, and Mobile Equipment.

[Deleted to synchronize definitions with CARB’s SCM for Automotive Coatings. 

Definition is no longer necessary]

(18) “Group II Vehicles” - Passenger Cars, Small-Sized Trucks and Vans, Medium-Sized 

Trucks and Vans, Motor Homes, and Motorcycles. [Deleted to synchronize definitions 

with CARB’s SCM for Automotive Coatings. Definition is no longer necessary]

(28) “Group II Exempt Compounds” - Compounds that are restricted because they are either 

toxic, potentially toxic, upper-atmosphere ozone depleters, or cause other 

environmental impacts. These compounds are listed as follows:

 methylene chloride (dichloromethane)

 1,1,1-trichloroethane (methyl chloroform)

 Trichlorofluoromethane (CFC-11)
AVAQMD Rule 1151 1151-9 

Motor Vehicle and Mobile Equipment Coating Operations 

D6; 05/14/12 

 dichlorodifluoromethane (CFC-12)

 1,1,2-trichloro-1,2,2-trifluoroethane (CFC-113)

 1,2-dichloro-1,1,2,2-tetrafluoroethane (CFC-114)

 chloropentafluoroethane (CFC-115)

 cyclic, branched, or linear, completely methylated siloxanes

 tetrachloroethylene (perchloroethylene)

 [Derived from 40 CFR 51.100(S)(1). Compounds removed from the preliminary draft version 

were removed in response to USEPA’s comment to do so.]

(1929) “High-Volume, Low-Pressure (HVLP) Spray” - an Eequipment Permanently Labeled as 

such used to apply Coatings by means of a spray gun which is designed to be operated 

and which is operated between 0.1 and 10 pounds per square inch gauge (psig) air 

pressure measured dynamically at the center of the air cap and at the air horns.

[“Permanetly Labeled” was added to the definition in response to ARB’s comment to 

do so upon the D2 review]

(20) “Highway” - a way or place of whatever nature, publicly maintained and open to the 

public for purposes of vehicular travel. Highway includes street.

(2130) “Impact Resistant Coating” - any Any Coating applied to a rocker panel for the purpose 

of chip resistance to road debris. 

(2231) “Metallic/Iridescent Color CoatingTopcoat” - a TopcoatAny Coating which contains 

iridescent particles, composed of either metal as metallic particles or silicon as mica 

particles, in excess of five (5) g/Lgrams per liter (0.042 lb/gal pounds per gallon) as 

applied, where such particles are visible in the dried film. [Changes to definition 

derived from CARB’s SCM for Automotive Coatings Section 3.18 and for clarification

purposes only.]

(23) “Midcoat” - a semi-transparent Topcoat which is the middle Topcoat applied as part of 

a Three-Stage Topcoat System. [Deleted as this coating category no longer exists in 

CARB’s SCM for Automotive Coatings]

(2432) “Mobile Equipment” - Any self-propelled equipmentdevice which is physically capable 

of being driven on a highway.may be drawn or is capable of being driven on a Roadway

or rails, including but not limited to, trains, railcars, truck bodies, truck trailers, utility 

bodies, camper shells, mobile cranes, bulldozers, street cleaners, and implements of 

husbandry or agriculture. Mobile Equipment includes, but is not limited to: 

construction (mobile crane, bulldozer, concrete mixer), farming (wheel tractor, plow, 

pesticide sprayer), and miscellaneous (street cleaners, golf carts, hauling equipment 

used inside and around an airport, dock, depot, and industrial and commercial plants).

[Changes to definition derived from CARB’s SCM for Automotive Coatings Section 

3.20 and from SJVUAPCD Rule 4612, section (3.23) and SCAQMD Rule 1151, section 

(c)(20]
1151-10 AVAQMD Rule 1151 

Motor Vehicle and Mobile Equipment Coating Operations 

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(25) “Motor Home” - any Motor Vehicle originally designed, or permanently altered, and 

equipped for human habitation as defined in Section 362 of the California Vehicle 

Code. [Deleted as this definition is no longer necessary to comply with CARB’s SCM 

for Automotive Coatings]

(2633) “Motor Vehicle” - a vehicle which is self-propelled and which is physically capable of 

being driven on a Highway., including, but not limited to cars, trucks, Buses, golf carts, 

vans, Motorcycles, tanks, and armored personnel carriers. [Changes to definition 

derived from CARB’s SCM for Automotive Coatings Section 3.20]

(2734) “Motorcycle” - any Motor Vehicle other than a tractor having a seat or saddle for the 

use of the rider and designed to travel on not more than three wheels in contact with the 

ground and weighing less than 1500 pounds, except that four wheels may be in contact 

with the ground when two of the wheels are a functional part of a sidecar.

(35) “Multi-Color Coating” - Any Coating that exhibits more than one color in the dried film 

after a single application, is packaged in a single container, and hides surface defects on 

areas of heavy use, and which is applied over a Primer or Adhesion Promoter. [Derived 

from CARB’s SCM for Automotive Coatings Section 3.21]

(2836) “Multi-Colored Multistage Topcoat System” - A Basecoat/Clearcoat Topcoat System in 

which the basecoat portion is a Multi-Colored Topcoat “Multi-Colored Topcoat” - a 

Coating which exhibits more than one color when applied, and which is packaged in a 

single container and applied in a single coat.

(29) “Multi-Colored Multistage Topcoat System” - a Basecoat/Clearcoat Topcoat System in 

which the basecoat portion is a Multi-Colored Topcoat.

(37) “Multi-Colored Topcoat” - a Coating which exhibits more than one color when applied, 

and which is packaged in a single container and applied in a single coat.

(3038) “Multistage Topcoat System” - any Any Basecoat/Clearcoat Topcoat System or any 

Three-Stage Topcoat System, manufactured as a system, and used as specified by the 

manufacturer.

(3139) “Passenger Car” - any Motor Vehicle designed primarily for transportation of persons 

and having a design capacity of 12 persons or less.

(40) “Person” - Shall have the same meaning as defined in the California Health and Safety 

Code §39047. [Derived from CARB’s SCM for Automotive Coatings Section 3.22]

(41) “Permanently Labeled” - Permanent labeling is in the form of an engraving or a plate 

permanently attached to the equipment.

(3242) “Pretreatment Coating” - a A Coating which contains no more than sixteen (16) percent 

solids, by weight, and at least one-half (0.5) 1/2-percent acid, by weight, is used to 
AVAQMD Rule 1151 1151-11 

Motor Vehicle and Mobile Equipment Coating Operations 

D6; 05/14/12 

provide surface etching, and is applied directly to bare metal surfaces to provide 

corrosion resistance and promote adhesion for subsequent Coatings. [Changes are for 

clarification purposes only]

(3343) “Primer” - Any Coating which is labeled and formulated for application to a substrate to 

provide 1) a bond between the substrate and subsequent coats, 2) corrosion resistance, 

3) a smooth substrate surface, or 4) resistance to penetration of subsequent coats, and on 

which a subsequent Coating is applied. Primers may be pigmented.a Coating applied 

for purposes of corrosion resistance or adhesion of subsequent Coatings. [Changes to 

definition derived from CARB’s SCM for Automotive Coatings Section3.24]

(3444) “Primer Sealer” - Anya Coating which is labeled and formulated for application applied 

prior to the application of a Topcoat Color Coating for the purpose of color uniformity, 

or to promote the ability of an underlying Coating to resist penetration by the 

TopcoatColor Coating. [Changes to definition derived from CARB’s SCM for 

Automotive Coatings Section3.25]

(3545) “Primer Surfacer” - a A Coating applied for the purpose of corrosion resistance or 

adhesion, and which promotes a uniform surface by filling in surface imperfections.

(46) “Reducer” - Any volatile liquid used to reduce the viscosity of the Coating, but not used 

for Cleaning Operations. This liquid may be solvents, diluents, or both, and may also 

be referred to as a thinner. [Derived from MDAQMD’s Rule1116, Section (B)(32). 

Changes to this definition made in response to ARB’s comment on D2. Additional 

changes added to distinguish Reducer solvents from cleaning solvents added in 

response to ACA comments of D2.]

(47) “Refinishing” - Any Coating of Motor Vehicles, their Associated Parts and 

Components, or Mobile Equipment, including partial body collision repairs, for the 

purpose of protection or beautification and which is subsequent to the original Coating 

applied at an Original Equipment Manufacturing (OEM) plant Coating Assembly Line.

[Derived from MDAQMD’s Rule1116, Section (B)(33)]

(48) “Roadway” - A way or place used for purposes of vehicular travel. [definition was 

changed from “Highway” to “Roadway” and modified to ensure the definition of 

“Mobile Equipment” is not affected by the use of roads.]

(3649) “Rocker Panel” - the The panel area of a Motor Vehicle which is no more than ten 

inches from the bottom of a door, quarter panel or fender. 

(3750) “Rubberized Asphaltic Underbody Coating” - a A Coating applied to wheel wells, the 

inside of door panels or fenders, the underside of a trunk or hood, or the underside of 

the Motor Vehicle itself, for the purpose of sound deadening or protection.

(51) Single-Stage Coating” – Any pigmented coating, excluding Primers and Multi-Color 

coatings, labeled and formulated for application without a subsequent clear coat. 
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Motor Vehicle and Mobile Equipment Coating Operations 

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Single-stage coatings include single-stage metallic/iridescent Coatings. [Added to 

conform with SCM, section 3.26]

(3852) “Solvent Cleaning Operations” - the The removal of loosely held uncured adhesives, 

uncured inks, uncured Coatings, and contaminants which include, but are not limited to, 

dirt, soil, and grease from parts, products, tools, machinery, equipment, and general 

work areas. Each distinct method of cleaning in a cleaning process which consists of a 

series of cleaning methods shall constitute a separate Solvent Cleaning Operation. 

(3953) “Specialty Coating” - Aany of the following Coatings: Adhesion Promoters, Uniform 

Finish Blenders, Elastomeric Materials, Anti-Glare Safety Coatings, Impact Resistant 

Coatings, Rubberized Asphaltic Underbody Coatings, Water Hold-Out Coatings, WeldThru Coatings, and Bright Metal Trim Repair Coatings. 

(4054) “Spot Repairs” - Repair of an area on a motor vehicle, piece or mobile equipment, or

associated parts or components of less than an entire panel.repairs to Motor Vehicles in 

which the damaged area to be repaired is limited to only a portion of any given panel so 

that an entire panel need not be repaired. [Change in definition was made in response to 

comment from the American Coatings Association requesting this language to better 

reflect the rationale behind spot repair.]]

(55) “Stripping” - The use of solvent to remove material such as cured adhesives, cured inks, 

cured or dried paint, cured or dried paint residue, or Temporary Protective Coatings. 

[Derived from SJVUAPCD Rule 4612, section (3.36)]

(4156) “Stencil Coating” - an An ink or a pigmented Coating which is rolled or brushed onto a 

template or a stamp in order to add identifying letters, symbols, and/or numbers to 

Motor Vehicles, Mobile Equipment, or their parts and components. 

(57) “Targeted HAP Compounds”- The Hazardous Air Pollutant (HAP) compounds of 

chromium (Cr), lead (Pb), manganese (Mn), nickel (Ni), or cadmium (Cd) targeted by 

40 CFR 63 Subpart HHHHHH – National Emission Standards for Hazardous Air 

Pollutants: Paint Stripping and Miscellaneous Surface Coating Operations at Area 

Sources. [Definition added to comply with 40 CFR 60 Subpart 6H]

(42) “Three-Stage Topcoat System” - a Topcoat system composed of a Basecoat portion, a 

Midcoat portion and a transparent Clearcoat portion. The VOC content of a ThreeStage Topcoat System shall be calculated according to the following formula:

 VOCbc + VOCmc + 2 VOCcc

VOCms =

4
AVAQMD Rule 1151 1151-13 

Motor Vehicle and Mobile Equipment Coating Operations 

D6; 05/14/12 

 Where:

VOCms = the composite VOC content, less water and less exempt 

compounds, to be used for compliance determination under 

the Multistage Topcoat System Coating category.

VOCbc = the VOC content, less water and less exempt compounds as 

applied, of any given Basecoat.

VOCmc = the VOC content, less water and less exempt compounds as 

applied, of any given Midcoat.

2 VOCcc = two times the VOC content, less water and less exempt 

compounds as applied, of any given Clearcoat.

(58) “Temporary Protective Coatings” - Any Coating which is labeled and formulated for 

the purpose of temporarily protecting areas form overspray or mechanical damage. 

[Derived from CARB’s SCM for Automotive Coatings Section3.29]

(4359) “Topcoat” -– Any Coating applied over a Primer, Primer System or an original OEM 

Finish a Coating applied over any Coating, for the purpose of appearance, 

identification, or protection.

[The definition of “Touch-up” was deleted from this rule as requested by ARB upon their 

review of D2]

(44) “Touch-Up Coating” - a Coating applied by brush, air-brush, or non-refillable aerosol 

can to cover minor surface damage and dispensed in containers of no more than eight 

(8) ounces.

(4560) “Transfer Efficiency” - Tthe ratio of the weight of Coating solids deposited on an object 

to the total weight of Coating solids used in a Coating application step, expressed as a 

percentage. 

(4661) “Truck” - Aa Motor Vehicle designed, used, or maintained primarily for the 

transportation of property. 

(a) “Large-Sized Truck” - a A Truck having a manufacturer's gross vehicle weight 

rating of more than 8600 pounds. 

(b) “Medium-Sized Truck” - a A Truck having a manufacturer's gross vehicle 

weight of 6001 to 8600 pounds. 

(c) “Small-Sized Truck” - any Any Motor Vehicle having a manufacturer's gross 

vehicle weight rating at 6000 pounds or less and which is designed primarily for 

the purposes of transportation of property or is a derivative of such vehicle, or is 

available with special features enabling on-street or off-highway operation and 

use.
1151-14 AVAQMD Rule 1151 

Motor Vehicle and Mobile Equipment Coating Operations 

D6; 05/14/12 

(62) “Truck Bed Liner Coating” - Any Coating, excluding Clear, Color, Multi-color, and 

Single-stage Coatings, labeled and formulated for application to a truck bed to protect it 

from surface abrasion. [Derived from CARB’s SCM for Automotive Coatings 

Section3.31. “Clear” was added in this definition upon the request of ARB of D2 

review.]

(63) “Underbody Coating” - Any Coating labeled and formulated for application to wheel 

wells, the inside of door panels or fenders, the underside of a trunk or hood, or the 

underside of the motor vehicle.[Derived from CARB’s SCM for Automotive Coatings 

Section3.32]

(4764) “Uniform Finish Blenders” - Any Coating labeled and formulated for applications 

which are applied into the area around a Spot Repairs for the purpose of blending a 

repaired area’s color or clear coat to match the appearance of of an adjacent area’s 

existing Coating.paint overspray area of a repaired Topcoat to match the appearance of 

an adjacent existing Topcoat. On and after 07/01/12 this Coating Category will be 

referred to as Uniform Finish Coating. [The changes in this definition were made in 

response to ARB’s comment of D2 to limit confusion between the definition of “ 

Uniform Finish Blenders” and “Uniform Finish Coating”.]

(65) “Uniform Finish Coating”- Any Coating labeled and formulated for application to the 

area around a Spot Repair for the purpose of blending a repaired area’s color or clear 

coat to match the appearance of an adjacent area’s existing Coating. Prior to 07/01/12 

this Coating Category may be referred to as Uniform Finish Blenders. [The changes in 

this definition were made in response to ARB’s comment of D2 to limit confusion 

between the definition of “ Uniform Finish Blenders” and “Uniform Finish Coating”.]

[Changes to definition derived from CARB’s SCM for Automotive Coatings, Section 3.33]

(4866) “Van” - a closed Truck for carrying property or persons. 

(a) “Medium-Sized Van” - a A Van having a manufacturer's gross vehicle weight 

rating of 6001 to 8600 pounds. 

(b) “Small-Sized Van” - Aa Van having a manufacturer's gross vehicle weight 

rating at 6000 pounds or less and which is designed primarily for purposes of 

transportation of property and/or persons. 

(4967) “Vehicle” - a device by which any person or property may be propelled, moved, or 

drawn upon a HighwayRoadway, excepting a device moved exclusively by human 

power or used exclusively upon stationary rails or tracks.

(68) “VOC Actual” - This definition is the same as the definition of Grams of VOC per Liter 

of Material as listed under subsection (B)(27). [Definition derived from CARB’s SCM 

for Automotive Coatings, Section 3.36.2]
AVAQMD Rule 1151 1151-15 

Motor Vehicle and Mobile Equipment Coating Operations 

D6; 05/14/12 

(69) “VOC Regulatory” - This definition is the same as the definition of Grams of VOC per 

Liter of Coating Less Water and Less Exempt Compounds as listed under subsection 

(B)(26). [Definition derived from CARB’s SCM for Automotive Coatings, Section 

3.36.1]

(5070) “Volatile Organic Compound (VOC)” -– Aany volatile compound containing the 

element carbon, excluding methane, carbon monoxide, carbon dioxide, carbonic acid, 

metallic carbides or carbonates, ammonium carbonate, and Exempt Compounds. 

(51) “VOC per Volume of Applied Solids” – the weight of VOC per volume of applied 

Coating solids, as calculated by the following equation:

Lbs. VOC per WPG * (100 - %NVw - %NOVw - %EVw)

Gallon of Solids = ______________________________________________ 

%NVv

Where:

WPG = weight of a gallon of Coating in pounds

%NVw = percent by weight of non-volatile compounds

%NOV

w

= percent by weight of non-organic volatile compounds

%Evw = percent by weight of Exempt Compounds

%NVv = percent by volume of non-volatile compounds

 [Definition deleted as no longer necessary to conform with CARB’s SCM for Automotive 

Coatings]

(5271) “Water Hold-Out Coating” - a A Coating applied to the interior cavity areas of doors, 

quarterpanels and rocker panels for the purpose of corrosion resistance to prolonged 

water exposure. 

(5372) “Weld-Thru Coating” - a A Coating applied to metal immediately prior to welding to 

provide corrosion resistance. 

(C) Requirements 

(1) VOC Content of Coatings 

(a) Effective on the dates specified, a person shall not apply Coating to a Motor 

Vehicle, Mobile Equipment, or Associated Parts or Components, that has a 

VOC content in excess of the limits contained in Table 1 and Table 2 of this 

subsection except as provided in Section (C)(3)(a) or (b).A person shall not 

apply a Coating to Group I Vehicles and Equipment, and Group II Vehicles, or 

their parts and components, which has a VOC content which exceeds the limits 

contained in subparagraphs (C)(1)(a) and (C)(1)(b). Compliance with the VOC 
1151-16 AVAQMD Rule 1151 

Motor Vehicle and Mobile Equipment Coating Operations 

D6; 05/14/12 

limits shall be based on VOC content, including any VOC material added to the 

original Coating supplied by the manufacturer, less water and Exempt 

Compounds, as applied to the Vehicle, Mobile Equipment, or parts and 

components. [Changes derived from CARB’s SCM for Automotive Coatings, 

Section 4.1] 

(i) Group I Vehicles and Equipment

1. A person who applies Coatings to Group I Vehicles and 

Equipment, or their parts or components, shall not apply a 

Coating which has a VOC content in excess of the limits in Table 

1.

TABLE 1 Table 1 - Coating Categories and VOC Limits

VOC Regulatory Limit, as applied, in grams 

per Liter (pounds per gallon)

Coating Categories Effective on and after 05/01/13

Adhesion Promoter 540 (4.5)

Clear Coating 250 (2.1)

Color Coating 420 (3.5)

Multi-color Coating 680 (5.7)

Pretreatment Coating 660 (5.5)

Primer 250 (2.1)

Primer Sealer 250 (2.1)

Single-stage Coating 340 (2.8)

Temporary Protective Coating 60 (0.5)

Truck Bed Liner Coating 310 (2.6)

Underbody Coating 430 (3.6)

Uniform Finish Coating 540 (4.5)

Any Other Coating Type 250 (2.1)

 [Changes derived from CARB’s SCM for Automotive Coatings, Section 4.1. The extended Singlestage Coating VOC compliance date was removed in response ARB’s comment to do so upon review of 

D2. The Vinyl Interior Coating category was also deleted in response to ARB’s comment for removal 

upon review of D2]

COATING VOC LIMITS

Grams per Liter of Coating,

Less Water and Exempt 

Compounds

on and after January 1, 1997

g/L lb/gal
AVAQMD Rule 1151 1151-17 

Motor Vehicle and Mobile Equipment Coating Operations 

D6; 05/14/12 

COATING VOC LIMITS

Grams per Liter of Coating,

Less Water and Exempt 

Compounds

on and after January 1, 1997

Pretreatment 780 6.5

Primer/Primer Surfacer/ 

Primer Sealer

250 2.1

Topcoats

General 340 2.8

Metallic/Iridescent 340 2.8

Multi-Colored 680 5.7

Multistage 340 2.8

Specialty Coating 840 7.0

[Changes derived from CARB’s SCM for Automotive Coatings, Section 4.1]

(ii) Group II Vehicles

1. A person who applies Coatings to Group II Vehicles, or their 

parts or components, except the application of Multistage 

Topcoat Systems to Motor Homes as part of their original 

production, shall not apply a Coating which has a VOC content 

in excess of the limits in Table 2.

TABLE 2

COATING VOC LIMITS

Grams per Liter of Coating, Less Water and Exempt 

Compounds

On and After July 20, 1999 On and After July 1, 

2000

g/L lb/gal g/L lb/gal

Pretreatment 780 6.5 780 6.5

Primer/Primer Surfacer 250 2.1 250 2.1

Primer Sealer 340 2.8 340 2.8

Topcoats

General 420 3.5 420 3.5

Metallic/Iridescent 420 3.5 420 3.5

Multi-Colored 680 5.7 680 5.7

Multistage System 540 4.5 420 3.5

Multi-Colored 

Multistage

420 3.5 420 3.5

Specialty Coating 840 7.0 840 7.0

2. A person who applies Coatings to Motor Homes and/or their 

parts and components as part of their original production shall 
1151-18 AVAQMD Rule 1151 

Motor Vehicle and Mobile Equipment Coating Operations 

D6; 05/14/12 

not apply any Multistage Topcoat System that results in VOC per 

Volume of Applied Solids in excess of 15.0 lb/gal. 

Table 2 - Coating Categories and VOC Limits

VOC Regulatory Limit, as applied,

 in grams per Liter (pounds per gallon)

Coating Categories Group 1* Vehicles prior to

05/01/13

Group 2** vehicles prior 

to 05/01/13

Pretreatment Wash Primer 780 (6.5) 780 (6.5)

Primer/Primer Surfacer/ Primer 

Sealer 250 (2.1) 250 (2.1)

Primer Sealer 250 (2.1) 340 (2.8)

Topcoat

 General 340 (2.8) 420 (3.5)

 Metallic/Iridescent 340 (2.8) 420 (3.5)

 Multi-Colored 680 (5.7) 680 (5.7)

 Multistage 340 (2.8) 420 (3.5)

Specialty Coatings 840 (7.0) 840 (7.0)

*Group 1 Vehicles are public transit buses and mobile equipment including but not limited to: truck 

bodies, truck trailers, utility bodies, camper shells, mobile cranes, bulldozers, street cleaners, golf 

carts, and implements of husbandry, where color match is not required.

**Group 2 Vehicles are passenger cars; large/heavy duty truck cabs and chassis with a manufacturer's 

gross vehicle weight over 10,000 pounds; light and medium duty trucks and vans having a 

manufacturer's gross vehicle weight rating of 10,000 pounds or less; and motorcycles; and Group 1 

Vehicles where color match is required.

[Table 2 inserted to maintain current Rule limits until the limits of CARB’s SCM for Automotive 

Coatings come in to effect]

(b) Compliance with the VOC limits shall be based on VOC Content, including any 

VOC material added to the original coating supplied by the manufacturer, less

water and Exempt Compounds, as applied to the Motor Vehicle, Mobile 

Equipment, or Associated Parts or Components (please, refer to subsection 

(B)(26) for the calculation of VOC Content). [Derived from SCAQMD Rule 

1151, section (d)(1). Additional reference to (B)(26) was added in response to 

USEPA’s comment on the preliminary draft suggesting to add reference.]

(2) Most Restrictive VOC Limit

(a) If anywhere on the container of any Automotive Coating, or any label or sticker 

affixed to the container, or in any sales, advertising, or technical literature, any 

representation is made that indicates that the Coating meets the definition of, or 

is recommended for use of, more than one of the Coating categories listed in 

subsection (C)(1)(a) and (b), then the lowest applicable VOC content limit in 
AVAQMD Rule 1151 1151-19 

Motor Vehicle and Mobile Equipment Coating Operations 

D6; 05/14/12 

Table 1 and Table 2 shall apply. [Derived from CARB’s SCM for Automotive 

Coatings, Section 4.2].

(3) Alternative Compliance

(a) Emission Control System

 A person may comply with the provisions of section (C)(1) by using an 

approved Emission Control System consisting of collection and control devices, 

that is approved, in writing, by the APCO for reducing emissions of VOC. The 

APCO shall approve such Emission Control Systems only if the Emission 

Control System demonstrates a control efficiency of at least 85 percent. The 

required efficiency of an Emission Control System at which an equivalent or 

greater level of VOC emission reduction will be achieved shall be calculated by 

the following equation: [The reference to achieving a control efficiency of at 

least 85% has been included specifically in the second draft due to USEPA’s 

comment requesting the specific limit be designated in rule language in this 

section.]

 100

1

1

1 ,

,

,









































































































  

D

VOC

D

VOC

VOC

VOC

c

LWc

n Max

LWn Max

LWn Max

LWc CE

 

 Where:

 CE = Control Efficiency, percent

 VOCLWc = VOC Limit of Rule 1116, less water and less 

 Exempt Compounds, pursuant to Section C.1.

 VOCLWn,Max = Maximum VOC content of non-compliant 

 Automotive Coating used in conjunction with a 

 control device, less water and Exempt 

 Compounds.

 Dn,Max = Density of VOC solvent, Reducer, or thinner 

 contained in the non-compliant Automotive 

 Coating containing the maximum VOC.

 Dc = Density of corresponding VOC solvent, Reducer, 

 or thinner used in the compliant Automotive 

 Coating system = 880g/L.

(b) Alternative Emission Control Plan
1151-20 AVAQMD Rule 1151 

Motor Vehicle and Mobile Equipment Coating Operations 

D6; 05/14/12 

 A person may comply with the provisions of paragraph (C)(1)(a) by means of an Alternative 

Emissions Control Plan, pursuant to Rule 108 – Alternative Emissions Control Plans. [Derived from 

SCAQMD Rule 1151, section (d)(4)(A) and CARB’s Suggested Control Measure for Automotive 

Coatings section (4.3)]

(4) Prohibited Compounds

(a) A Person shall not manufacture, sell, offer for sale, distribute for use in the District, or apply 

any Automotive Coating which contains any Group II Exempt Compounds, as defined in subsection 

(B)(28). [Derived from 40 CFR 51.100(s)(1). Compounds removed from the preliminary draft version

were removed in response to USEPA’s comment to do so.]

(25) Carcinogenic Materials 

(a) A person shall not manufactureapply Automotive Coatings in which cadmium 

or hexavalent chromium was introduced as a pigment or as an agent to impart 

any property or characteristic to the Coatings during manufacturing, 

distribution, or use of the applicable Coatings.Coatings as defined by the Air 

Toxic Control Measure (ATCM) for Emissions of Hexavalent Chromium and 

Cadmium from Motor Vehicle and Mobile Equipment Coatings, Title 17 CCR, 

section 93112. [Derived from SCAQMD Rule 1151, section (d)(6)and ATCM: 

Title 17 CCR, section 93112].

(36) Transfer EfficiencyApplication Methods [Change made for clarification purposes only]

(a) Except for Underbody Coatings, graphic arts operations, Truck Bed Liner 

Coatings, or any Coating use of less than one (1.0) fluid ounce (29.6 milliliters), 

noA person shall not apply any Coatings except to Motor Vehicles or Mobile 

Equipment or their Associated Parts and Components unless by the use of one of 

the following methods:[Changes added in response to EPA’s comment to 

include the exception of Underbody Coatings, graphic arts, Truck Bed Liner 

Coatings and Coating use of less than one fluid ounce.]

(i) Brush, dip, or roller; or, [Added to conform with SCM, section 4.7.1]

(ii) electrostatic Electrostatic Aapplication equipment, operated in 

accordance with the manufacturer’s recommendations and in compliance 

with permit conditions;, or, 

(iii) (ii) High-Volume, Low-Pressure (HVLP) Spray, oroperated in 

accordance with the manufacturer’s recommendations and in compliance 

with permit conditions; or,

 a. No Person shall sell or offer for sale, for Automotive Refinishing 

use within the District, any HVLP spray gun without a permanent 

marking denoting the maximum inlet air pressure in pounds per square 

inch gauge (psig) at which the gun will operate within the parameters 

specified in Section (B)(29).

 b. If an Automotive Refinishing gun is not Permanently Labeled, 

the operator must demonstrate that the gun meets the HVLP definition in 
AVAQMD Rule 1151 1151-21 

Motor Vehicle and Mobile Equipment Coating Operations 

D6; 05/14/12 

Section (B)(29) in design and use. A satisfactory demonstration must be 

based on the manufacturer’s published technical material on the design 

of the gun and by a demonstration of the operation for the gun using an 

air pressure tip gauge designed specifically for the gun in use. [These 

subsections were added in response to EPA’s comment to do so from the 

review of Draft 2]

(ivii) Any other Coating application which has been demonstrated to the 

satisfaction of the APCO to be capable of achieving a Transfer 

Efficiency equivalent to, or higher than, the application methods listed in 

subsections (C)(6)(a)(i) and (C)(6)(a)(ii) above, but not less than 65 

percent, as per subsections (G)(2)(e) and (G)(2)(k),such other Coating 

application methods as are demonstrated, in accordance with the 

provisions of subsection (F)(1)(e), to be capable of achieving equivalent 

or better transfer efficiency than the Coating application method listed in 

subsection (C)(3)(a)(ii), and for which written approval of the Air 

Pollution Control OfficerAPCO has been obtained.[Changes derived 

from CARB’s SCM for Automotive coatings, Section 4.7 and 

MDAQMD’s Rule 1116, Section (C)(6)(a)]

(b) A person shall not apply Coatings by any of the methods listed in subparagraph 

(C)(3)(a) unless the Coating is applied with properly operating equipment, 

operated according to procedures recommended by the manufacturer. [Deleted 

as this language as been reworded in the above subsections]

(47) Surface Preparation and Cleaning OperationsSolvent Cleaning Operations; Storage and 

Disposal of VOC-containing Materials [Change incorporated for clarification purposes 

only]

(a) Solvent cleaning of application equipment, parts, products, tools, machinery, 

equipment, general work areas, and the storage and disposal of VOC-containing 

materials used in cleaning operations shall be carried out pursuant to Rule 1171 

- Solvent Cleaning Operations.

(a) The requirements of this subsection shall apply to any Person using solvent for 

Surface Preparation and Cleaning Operations.

(i) Any Person shall not use an organic compound(s), or mixture thereof, 

(excluding Exempt Compounds) for Surface Preparation and Cleaning 

Operations with a VOC content in excess of twenty-five (25) grams per 

liter (0.21 pounds per gallon) of material.

 1. Cleaning with aerosol solvent products shall not be subject to the 

provisions of subsection (C)(7)(a) if 160 fluid ounces or less of aerosol 

solvent products are used per day, per facility. [Aerosol solvent product 
1151-22 AVAQMD Rule 1151 

Motor Vehicle and Mobile Equipment Coating Operations 

D6; 05/14/12 

exemption added in response to ACA comment of review of D2. This 

exemption is from SCAQMD Rule 1171].

(ii) Any Person shall use closed, non-absorbent containers for the storage or 

disposal of any applicator (including brushes, swabs, cloth or paper) 

used for solvent Surface Preparation and Cleaning Operations.

(iii) Any Person shall store all Automotive Coatings, Coating components, 

and fresh or spent solvent in vapor tight and closed containers, except 

while adding or removing them from the containers. [This subsection 

was expanded to include all automotive coatings and components in 

response to EPA’s comment to do so upon review of draft 2]

(iv) Any Person shall not use organic compounds for the Cleaning 

Operations of spray equipment including paint liners unless an enclosed 

system is used for Cleaning Operations. The system shall enclose spray 

guns, cups, nozzles, bowls, and other parts during washing, rinsing and 

draining procedures. Equipment used shall minimize the evaporation of 

organic compounds to the atmosphere. [Changes made to conform with 

the requirements of CARB’s SCM for Automotive Coatings. The old 

solvent VOC requirements referenced in AVAQMD Rule 1171 are less 

stringent than the SCM, therefore, the reference in this rule has been 

removed.]

(b) Effective May 1, 2013, no Person shall possess at any Automotive Refinishing 

Facility, any solvent used for Surface Preparation and Cleaning Operations with 

a VOC content that does not comply with the requirements in subsection 

(C)(7)(a)(i). [Changes made to conform to the requirements of CARB’s SCM for 

Automotive Coatings section 4.4. The old solvent VOC requirements referenced

in AVAQMD Rule 1171 are less stringent than the SCM, therefore, the reference 

in this rule has been removed.]

(5) Approved Emission Control System

(a) A person may comply with the provisions of subsection (C)(1)(a), by using an 

approved emission control system, consisting of collection and control devices, 

which is approved, in writing, by the Air Pollution Control Officer for reducing 

emissions of VOC. The Air Pollution Control Officer shall approve such 

emission control system only if the VOC emissions resulting from the use of 

non-compliant Coatings will be reduced to a level equivalent to or lower than 

that which would have been achieved by the compliance with the terms of 

paragraph (C)(1)(a). The required efficiency of an emission control system at 

which an equivalent or greater level of VOC emission reduction will be 

achieved shall be calculated by the following equation: [This section has been 

moved to Section (C)(3)]
AVAQMD Rule 1151 1151-23 

Motor Vehicle and Mobile Equipment Coating Operations 

D6; 05/14/12 

(VOCLWc) 1 - (VOCLWn,Max/Dn,Max)

C.E. = 1 - _____________ X _______________________ X 100

(VOCLWn,Max) 1 - (VOCLWc/Dc)

Where:

C.E. = Control Efficiency, percent

VOCLWc = VOC Limit of Rule 1151, less water and less 

Exempt Compounds, pursuant to paragraph (c)(1).

VOCLWn,Max = Maximum VOC content of non-compliant Coating 

used in conjunction with a control device, less 

water and Exempt Compounds.

Dn,Max = Density of VOC solvent, reducer, or thinner

contained in the non-compliant Coating containing 

the maximum VOC.

Dc = Density of corresponding VOC solvent, reducer, or 

thinner used in the compliant Coating system = 

880 g/L.

(6) Alternative Emission Control Plan[This section has been moved to Section (C)(3)]

(a) A person may comply with the provisions of paragraph (c)(1) by means of an 

Alternative Emission Control Plan (AECP), pursuant to Rule 108.

(78) Prohibition of Possession, Specification and Sale 

(a) No person shall solicit from, or require any other person to use in the District 

any Coating which, when applied as supplied or thinned or reduced according to 

the manufacturer's recommendation for application, does not meet the applicable 

VOC limits required by subsection (C)(1)(a) for the specific application, or does 

not meet the requirements of subsection (C)(2)(a). [Deletion made here as these 

requirements have been re-worded and expanded to comply with CARB’s SCM 

for Automotive Coatings Sections 4.4, 4.5, 4.6, and 5.6.]

(ab) No Pperson subject to this rule shall posses any Automotive Coating that is not 

in compliance with the requirements of subsection (C)(1), unless one or more of 

the following conditions apply: shall offer for sale, sell, or distribute for use in 

the District any Coating which, when applied as supplied or thinned or reduced 

according to the manufacturer's recommendation for application, does not meet 

the applicable VOC limits required by subsection (C)(1)(a) for the specific 

application, or does not meet the requirements of subsection (C)(2).
1151-24 AVAQMD Rule 1151 

Motor Vehicle and Mobile Equipment Coating Operations 

D6; 05/14/12 

(i) The Coating is located at a facility that utilizes an approved Emission 

Control System pursuant to subsection (C)(3)(a), and the Coating meets 

the limits specified in permit conditions.

(ii) The Coating is located at a facility that operates in compliance with an 

approved Alternative Emissions Control Plan pursuant to subsection

(C)(3)(b), and the Coating is specified in the plan.

(iii) The Coating is located at a training center and the Coating is used for 

educational purposes, provided that the VOC emissions from Coatings 

not meeting VOC limits of section (C)(1) do not exceed twelve (12) 

pounds per day. 

(iv) The Coating is located at a prototype Motor Vehicle manufacturing 

facility and the Coating is supplied by an assembly-line Motor Vehicle 

manufacturer for use in the Refinishing of a prototype Motor Vehicle, 

provided that the VOC emissions from Coatings not meeting the VOC 

limits of section (C)(1) do not exceed twenty-one (21) pounds per day 

and 930 pounds in any one calendar year. [Changes derived from 

CARB’s SCM for Automotive Coatings section 4.4 and SJVUAPCD Rule 

4612, section (5.5)]

(bc) No person shall solicit from, or require any other Person to use, offer for sale to, 

sell to, or distribute to any other person for use in the District any Automotive 

Coating or solventapplication equipmentwhich, when applied as supplied or 

thinned or reduced according to the manufacturer’s recommendation for 

application, which does not meet the requirements of subsection (C)(3)(a).does 

not meet the:

(i) Applicable VOC limits required by subsection (C)(1) for that specific 

application unless:

a. The Coating is located at a Automotive Refinishing Facility that 

utilizes an approved Emission Control System pursuant to 

subsection (C)(3)(a), and the Coating meets the limits specified 

in permit conditions.

b. The Coating is specifically exempt pursuant to section (D) of this 

rule. [Changes derived from CARB’s SCM for Automotive 

Coatings sections4.5 and 4.6]

(ii) Applicable VOC limits for solvent for Surface Preparation and Cleanup 

Operations pursuant to section (C)(7). [Subsection added in response to 

EPA’s comment to do so upon review of Draft 2 to include solvents in 

this section.]

(c) No Person shall manufacture, blend, supply, repackage for sale, offer for sale, 

sell, or distribute for use in the District any Automotive Coating which, when 

applied as supplied or thinned or reduced according to the manufacturer’s 

recommendation for application, does not meet the [Language was added to 
AVAQMD Rule 1151 1151-25 

Motor Vehicle and Mobile Equipment Coating Operations 

D6; 05/14/12 

inclue, “manufacture, blend, supply, repackage for sale” in response to EPA’s 

comment to do so upon review of Draft 2]:

(i) Applicable VOC limits required by subsection (C)(1) for the specific 

application, unless:

a. The Coating is located at an Automotive Refinishing Facility that 

utilizes an approved Emission Control System pursuant to 

subsection (C)(3)(a), and the Coating meets the limits specified 

in permit conditions.

b. The Coating is specifically exempt under section (D) of this rule.

c. The Person that offers for sale or distributes the Coating keeps 

the following records for at least five (5) years and makes them 

available to the APCO upon request, the following information:

1. Coating name and manufacturer;

2. Application method;

3. Automotive Coating Category and mix ratio specific to 

the Coating;

4. VOC content of Coating;

5. Documentation that the material is a Coating;

6. Current manufacturer specification sheets, material safety 

data sheets (MSDS), technical data sheets, or air quality 

data sheets, which list the VOC content of each ready-tospray Coating (based on the manufacturer’s stated mix 

ratio), Automotive Coating Components, and VOC 

content of each solvent;

7. Purchase records identifying the Automotive Coating 

category, name, and volume of Coatings; and,

8. The name and address of the Person purchasing the 

Coating, a statement of the basis the purchase will comply 

with this paragraph, including if use is for outside the 

District, and acknowledgement by the purchaser that this 

statement is correct. [Changes derived from SJVUAPCD 

Rule 4612, section (5.7) and CARB’s SCM for Automotive 

Coatings, section 4.5 and 4.6]

(ii) Requirements of subsections (C)(4) and (C)(5). [Changes derived from 

SJVUAPCD Rule 4612, section (5.7) and CARB’s SCM for Automotive 

Coatings, section 4.5 and 4.6 

(d) No Pperson shall solicit from, require, offer for sale to, sell to, or distribute to 

any other Person for the use in the District any Automotive Coating application 

equipment that does not meet the requirements of subsection (C)(6).an HVLP 

spray gun unless the person offering for sale, selling, or distributing the HVLP 

spray gun provides accurate information to the spray gun recipient on the 
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maximum inlet air pressure to the spray gun which would result in a maximum 

10 pounds per square inch gauge air pressure measured dynamically at the 

center of the air cap and the air horns. The information shall be permanently 

marked on the gun, or provided on the company's letterhead or in the form of 

technical literature which clearly identifies the spray gun manufacturer, the 

salesperson, or the distributor. [Changes made for simplification and 

clarification purposes only]

(e) The requirements of subsections (C)(71), (C)(2), and (C)(3)(a)-(d) shall apply to 

all written or oral agreements executed and entered into under the terms of 

which an Automotive Coating or a Coating application equipment shall be used 

at any location within the District. [Changes made for clarification purposes 

only].

(D) Exemptions 

(1) The provisions of subsections (C)(1)(a) and (C)(4) of this rule shall not apply to: 

(a) Touch-Up Coatings. [Deleted as this is addressed in section (D)(1)(e) below]

(a) Any Coating applied to Motor Vehicle or Mobile Equipment, or their 

Associated Parts and Components, during manufacture on an Assembly Line.

(b) Any Automotive Coating that is offered for sale, sold, or manufactured for use 

outside of the District or for shipment to other manufacturers for reformulation 

or repackaging. [Change derived from CARB’s SCM for Automotive Coatings, 

section 2.2.1]

(bc) Any Stencil Coatings Product.

(d) Any Aerosol Coating Product. [Change derived from CARB’s SCM for 

Automotive Coatings, section 2.2.2]

(e) Any Automotive Coating that is sold, supplied, or offered for sale in one-half 

(0.5) fluid ounce or smaller containers. [Change derived from CARB’s SCM for 

Automotive Coatings, section 2.2.3]

(2) The prohibitions specified in subsection (C)(7) shall not apply to Coatings or spray 

equipment which will be used solely outside of the District. [Deleted as it has been 

moved to subsection (D)(1)(b) above]
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(32) The prohibitions specified in subsections (C)(78)(a) or (b) shall not apply to persons 

offering for sale to, selling to, distributing to, or requiring other persons who are 

operating an approved emission Emission control Control system System under 

subsection (C)(53)(a), or complying under subsection (C)(63)(b), or operating pursuant 

to subsection (D)(43). 

(43) The requirements of subsection (C)(1)(a) shall not apply to Coatings applied for 

educational purposes at Coating training centers, which are owned and operated by 

Coating manufacturers, provided that the VOC emissions emitted at a Coating training 

center from Coatings not complying with subsection (C)(1)(a) do not exceed twelve 

(12) pounds per day.

(4) The requirements of subsection (C)(1) shall not apply to Coatings located at a prototype 

Motor Vehicle manufacturing facility and the Coating is supplied by an assembly-line 

Motor Vehicle manufacturer for use in the Refinishing of a prototype Motor Vehicle, 

provided that the VOC emissions from Coatings not meeting the VOC limits of section 

(C)(1) do not exceed twenty-one (21) pounds per day and 930 pounds in any one 

calendar [Changes made to reconcile this subsection with subsection (C)(8)(iv) in 

response to EPA’s comment to do so upon review of Draft 2]

(5) Any facility or Person classified as exempt or claiming to be exempt under this section, 

(D), shall meet the record keeping requirements of this rule so as to be able to prove the 

exemption status. [Added for enforcement purposes]

(6) Rule 442 Applicability

(a) Any Coating, Coating operation, or facility which is exempt from all or a 

portion of the VOC limits of this rule shall comply with the provisions of Rule 

442 if applicable. [Moved from Section G. The words, “if applicable” were 

added to clarify that exempt coatings/solvents from this rule may apply to Rule 

442. This was made in response to USEPA comment requesting clarification]

(5) The provisions of this rule shall not apply to Aerosol Coating Products.[Requirement 

has been moved to subsection (D)(1)(d) 

(6) For Spot Repairs on Group I Vehicles and Equipment, the Grams of VOC per Liter of 

Coating Less Water and Exempt Compounds limits for Metallic/Iridescent and 

Multistage Topcoats are 3.5 lb/gal. [Deleted as VOC limits for Spot Repairs are the 

same as VOC limits for any Automotive Refinishing repair]
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(E) Administrative Requirements [Section added to conform with CARB’s SCM for 

Automotive Coatings, section 5]

(1) Manufacturer’s Compliance Statement Requirement [Section added to conform with 

CARB’s SCM for Automotive Coatings, section 5.1]

(a) For each individual Automotive Coating, Automotive Coating Component, and 

ready-to-spray mixture (based on the manufacturers stated mix ratio), the 

manufacturer and/or repackager shall include the following information on a 

product data sheet, or an equivalent medium: [“Repackagers” was added to this 

subsection at the request of CARB upon review of Draft 2. Solvents was also 

included in the Manufacturer’s Complinace Statement Requirement upon the 

request of CARB.]

(i) The VOC Actual and the VOC Regulatory for Coatings (in grams per 

liter).

(ii) The weight percentage of volatiles, water, and Exempt Compounds.

(iii) The volume percentage of water and Exempt Compounds.

(iv) The density of the material (in grams per liter).

(v) The weight percentage of all Targeted HAP Compounds. [Section added 

to conform with CARB’s SCM for Automotive Coatings, section 5.1.1 to 

5.1.3. HAP requirement to ensure compliance with NESHAP 6H]

(b) For each solvent used in Solvent Cleaning Operations, the manufacturer and/or 

repackager shall include the following information on a product data sheet, or an 

equivalent medium: [“Solvent” was also included in the Manufacturer’s 

Compliance Statement Requirement upon the request of CARB. In response to 

the American Coating Association, the solvent section was separated out to only 

include the following requirement]

(i) The VOC Actual and the VOC Regulatory for Coatings (in grams per 

liter).

(2) Manufacturer’s Labeling Requirements [Section added to conform with CARB’s SCM 

for Automotive Coatings, section 5.2]

(a) The manufacturer and/or repackager of Automobile Coatings or Automotive 

Coating Components shall include, on all containers, the applicable use Coating 

Category(ies), and the VOC Actual and the VOC Regulatory for Coatings, as 

supplied (in grams per liter). [Section added to conform with CARB’s SCM for 

Automotive Coatings, section 5.2.1]

(b) The manufacturer and/or repackager of solvents subject to this rule shall include 

on all containers the VOC content for solvents, as supplied (in grams per liter)
AVAQMD Rule 1151 1151-29 

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[Section added to conform with CARB’s SCM for Automotive Coatings, section 

5.2.2]

[“Repackager” was added to each of these subsections in addition to “manufacturer” 

in response to ARB’s comment on D2]

(EF) Record Keeping Requirements 

(1) Record Keeping for VOC Emissions

(a) Records of Coating usage shall be maintained pursuant to Rule 109. [This 

section has been removed and specific requirements from CARB’s SCM for 

Automotive Coatings sections 5.4, 5.5, and 5.6 have been added. The current 

Rule 109 standards are in conflict with the SCM requirements, thus this 

reference has been removed.]

(2) Record Keeping for Emission Control Systems

(a) Any person using an emission control system as a means of complying with the 

provisions of subsection (C)(1)(a) shall maintain daily records of key system 

operating and maintenance procedures which will demonstrate continuous 

operation and compliance of the emission control system during periods of 

emission producing activities. Key system operating parameters are those 

necessary to ensure compliance with VOC limits. The parameters include, but 

are not limited to, temperatures, pressures, and flow rates. [This section has 

been removed and replaced with the requirements of subsection (E)(1)(b)(iii)]

(1) All Persons subject to this rule and any Person claiming any exemption under sections

(D)(1)(a) and (D)(1)(b) shall comply with the following requirements: [This section has 

been added for enforcement purposes]

(a) Maintain and have available during an inspection, a current list of Automotive 

Coatings and solvents in use which provides all of the Coating data necessary to 

evaluate compliance, including the following information:

(i) The name and manufacturer;

(ii) The Coating Category type and the mix ratio of components used;

(iii) The VOC Actual and the VOC Regulatory content of each Automotive 

Coating as applied, or VOC content for solvent;

(iii) The Targeted HAP Compounds content as applied in weight percentage; 

and,

(v) The application method used.

[The HAP requirement is added in response to 40 CFR 63 Subpart HHHHHH –

National Emission Standards for Hazardous Air Pollutants: Paint Stripping and 

Miscellaneous Surface Coating Operations at Area Sources. Section expanded 
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to include solvents in response to ARB’s comment on D2. Subsection 

(F)(1)(a)(ii) was also modified to clarify the requirement of Coating Category 

type in response to ARB’s comments of D2]

(b) Maintain records on a daily basis including:

(i) Automotive Coating and mix ratio of components used in the 

Automotive Coating;

(ii) Quantity of each Automotive Coating applied;

(iii) Application method used to apply Automotive Coating; and,

(iv) Any Person/facility utilizing an add-on Emission Control System as a 

means of complying with provisions of this rule shall also maintain 

records of key system operating and maintenance data for the purpose of 

demonstrating continuous compliance during periods of emission 

producing activities. The data shall be recorded in a manner as 

prescribed by the District. [Changes from CARB’s SCM for Automotive 

Coatings, section 5.4]

(c) Maintain records on a monthly basis for Surface Preparation and Cleaning 

Operations including:

(i) The name and manufacturer of the solvent used, including methylene 

chloride (MeCl).

(i) The amount of each solvent and methylene chloride (MeCl) consumed 

for any use, in gallons.

(ii) The weight percentage of each solvent and methylene chloride (MeCl) 

consumed for any use.

[The MeCl requirement is added in response to 40 CFR 63 Subpart HHHHHH –

National Emission Standards for Hazardous Air Pollutants: Paint Stripping and 

Miscellaneous Surface Coating Operations at Area Sources.]

(d) Such records shall be retained and available for inspection by the APCO for a 

minimum of five (5) years.

(2) Any Person claiming any exemption under sections (D)(1)(c), (D)(1)(d), and (D)(1)(e)

shall comply with the following requirements: [This section has been added for 

enforcement purposes and to single out recordkeeping requirements for Aerosols, halffluid ounce, and Stencil Coatings]

(b) Maintain records on a daily basis including:

(i) Exempt product type (i.e. Stencil Coating, Aerosol Coating Product, 

half-fluid ounce Coating); 

(ii) The name and manufacturer of the exempted Coating type; and,
AVAQMD Rule 1151 1151-31 

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(iii) The amount of the exempted Coating type.

(FG) Test Methods 

(1) A violation of the limits contained in this rule as determined by any one of these test 

methods shall constitute a violation of this rule.

(2) The following specified test methods shall be used to determine compliance with the 

provisions of this rule. [Changes derived from MDAQMD 1116 for enforcement 

purposes]

(1) For the purpose of this rule, the following test methods shall be used to determine 

compliance: 

(a) VOC Content of Coatings or Solvents

(i) The VOC content of Coatings or solvents shall be determined as 

prescribed by United States Environmental Protection Agency 

Reference Method 24 (without correction for Exempt Compounds) as set 

forth in Appendix A of Title 40 of the Code of Federal Reulations (40 

CFR) Part 60, “Determination of Volatile Matter Content, Water 

Content, Density, Volume Solids, and Weight Solids of Surface 

Doatings”. and ASTM Test Method D4457-85, or ARB Method 432 for 

determination of emission of Exempt Compounds. Perfluorocarbon 

compounds shall be assumed to be absent from a product or process 

unless a manufacturer or facility operator identifies the specific 

individual compounds (from the broad classes of perfluorocarbon 

compounds) and the amounts present in the product or process and 

provides a validated test method which can be used to quantify the 

specific compounds.[Changes made to conform with CARB’s SCM for 

Automotive Coatings, section 6.4]

(b) Determination of Iridescent Particles/ in Metallic/Iridescent Topcoat Content

(i) The metal and silicon content of metallic/iridescent topcoat coatings 

shall be determined by South Coast Air Quality Management District

Method 311318-95, (Determination of Percent Metal in Metallic 

Coatings by Spectrographic Method) contained in the SCAQMD 

"Laboratory Method of Analysis for Enforcement Samples" manual.

“Determination of Weight Percent Elemental Metal in Coatings by Xray” (July 1996).[Change made to conform with requirements of CARB’s 

SCM of Automotive Coatings, section 6.7]
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(c) Acid Content in Pretreatment Coatings

(i) The acid content of Pretreatment Coatings shall be determined by ASTM 

Test Method D1613-96, “Standard Test Method for Acidity in Volatile 

Solvents and Chemical Intermediates Used in Paint, Varnish, Lacquer, 

and Related Products” (May 2003). [Change made to conform with 

requirements of CARB’s SCM of Automotive Coatings, section 6.2. 

Method version was changed from preliminary draft in response to 

USEPA’s comment that this is the only version approved by EPA.]

(d) Reflectance of Anti-Glare Safety Coatings 

(i) The reflectance of Anti-Glare Safety Coatings shall be measured by 

ASTM Test Method D-23C523-89 (1989). [Test method changed in 

response to USEPA’s comment on the preliminary draft to update 

toEPA- approved version.]

(e) Transfer Efficiency 

(i) The transfer efficiency of alternative Coating application methods, as 

defined by subsection (C)(36)(a)(iii), shall be determined in accordance 

with the South Coast Air QMQuality Management District method "TE -

Spray Equipment Transfer Efficiency Test Procedure for Equipment 

User, May 24, 1989." 

(f) Equivalent Test Methods 

(i) Other test methods determined to be equivalent after review by the staffs 

of the District, California Air Resources Board, and the United States 

Environmental Protection Agency, and approved in writing by the Air 

Pollution Control Officer may also be used for methods of analysis. 

(2g) Determination of Efficiency of Emission Control Systems 

(ai) Emissions of VOCs for operations with emission Emission control 

Control systems Systems shall be measured as prescribed by EPA 

Reference Method 25, or 25A, or 25B for determining VOC emissions 

and control device efficiency, in combination with the USEPA method, 

“Guidelines for Determining Capture Efficiency” (January 9, 1995) and 

cited in 5540 CFR 51, Appendix M, Methods 204-204f as applicable

Federal Register (FR) 26865, June 29, 1990, for determination of capture 

efficiency. [Changes made to conform with CARB’s SCM for 

Automotive Coatings, section 6.5]

(h) Determination of Methyl Acetate, Acetone, and PCBTF Content
AVAQMD Rule 1151 1151-33 

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(i) The quantity of methyl acetate , acetone, t-butyl acetate, and 

parachlorobenzotrifluoride shall be determined by using ASTM Method 

D6133-02: “Standard Test Method for Acetone, pChlorobenzotrifluoride, Methyl Acetate or t-Butyl Acetate Content of 

Solventborne and Waterborne Paints, Coatings, Resins, and Raw 

materials by Direct Injection Into a Gas Chromatograph” (February 

2003). [Added to conform with CARB’s SCM for Automotive Coatings, 

section 6.1]

(i) Determination of Alternative Compliance

(i) Alternative compliance shall be determined by USEPA Method 25, 25A, 

or 25B, Title 40 CFR Part 60, Appendix A as applicable. A source is in 

violation if the measured VOC emissions, as measured by any of the test 

methods, exceed the standards specified in Section (C)(1). [Added to 

conform with CARB’s SCM for Automotive Coatings, section 6.6]

(j) Exempt Compound Content

(i) Exempt compound content, other than as determined pursuant to section 

(G)(2)(3), shall be determined by using CARB Method 432, 

“Determination of Dichloromethane and 1,1,1-Trichloroethane in Paints 

and Coatings” (September 12, 1989); CARB Method 422, 

“Determination of Volatile Organic Compounds in Emissions from 

Stationary Sources” (September 12, 1990); or, South Coast Air Quality 

Management District (SCAQMD) Method 303-91, “Determination of 

Exempt Compounds” (August 1996). [Added to conform with CARB’s 

SCM for Automotive Coatings, section 6.8. Updated test version dates in 

response to USEPA’s comments on the preliminary draft to update to 

EPA-approved versions.]

(k) HVLP Equivalency

(i) Transfer Efficiency equivalent to HVLP shall be determined by 

procedures as prescribed in the South Coast Air Quality Management 

District (SCAQMD) document "Guidelines for Demonstrating 

Equivalency with District Approved Transfer Efficient Spray Guns” 

(September 26, 2002). [Added to conform with CARB’s SCM for 

Automotive Coatings, section 6.10]

(3l) Multiple Test Methods 

(ai) When more than one test method or set of test methods are specified for 

any testing, a violation of any requirement of this rule established by any 
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one of the specified test methods or set of test methods shall constitute a 

violation of the rule. 

(G) Rule 442 Applicability

(1) Any Coating operation, subject to this rule which is exempt from all or a portion of the 

VOC limits of this rule shall comply with the provisions of Rule 442. [This section has 

been moved under section (D)(7)]

[See SIP Table at http://www.avaqmd.ca.gov/Modules/ShowDocument.aspx?documentid=921]

[SIP: Approved 04/10/00 65 FR 18901, 40 CFR 52.220(c)(270)(I)(E)(1); Submitted as amended 

03/08/96 on 07/23/96; Approved 06/13/95, 60 FR 31084, 40 CFR 52.220(c)(214)(i)(A)(1); Limited 

Approval/Disapproval 12/20/93, 58 FR 66286, 40 CFR 52.220(c)(193)(i)(A)(1)]