Imperial County Air Pollution Control District Rule 424

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RULE 424 ARCHITECTURAL COATINGS

(Adopted 11/9/82; revised 9/14/99; 01/11/2005; __/__/2010)

A. Applicability

Except as provided in subsection A.1C, this rule is applicable to any person who 

supplies, sells, offers for sale, or manufactures, blends, or repackages any 

architectural coating for use within the District, as well as any person who applies 

or solicits the application of any architectural coating within the District. Terms 

applicable to this rule are defined in Rule 101-Definitions.

B. Severability

Each provision of this rule shall be deemed severable, and in the event that any 

provision of this rule is held to be invalid, the remainder of this rule shall continue 

in full force and effect.

C. A.1Exemptions

The requirements of this rule do not apply to:

C.1A.1.a Any architectural coatings that are supplied, sold, offered for sale, or 

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

manufacturers for reformulation or repackaging.

C.2A.1.b Any aerosol coating product

C.3A.1.c With the exception of section F, this rule does not apply to A any 

architectural coating that is sold in a container with a volume of one liter 

(1.057 quart) or less.

B D. Standards

DB.1 VOC Content Limits: Except as provided in subsections D.2 or D.3 B.2, 

B.3, and B.8, no person shall: (i) manufacture, blend, or repackage for 

sale use within the district; or (ii) supply, sell, or offer for sale for use within 

the district; or (iii) solicit for application or apply within the district, any 

architectural coating with a VOC content in excess of the corresponding 

limits specified in Table 424-1 and Table 424-2., after the specified 

effective date in Table 424-1. Limits are expressed as VOC Regulatory, 

thinned to the manufacturer’s maximum thinning recommendation, 

excluding any colorant added to tint bases. 

DB.2 Most Restrictive VOC Limit: Effective until January 1, 2011, If anywhere 

on the container of any architectural coating, or any label or sticker affixed 

to the container, or in any sales, advertising, or technical literature 
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supplied by a manufacturer or anyone acting on their behalf, any 

representation is made that indicates that the coating meets the definition 

of or is recommended for use for more than one of the coating categories 

listed in Table 424-1, then the most restrictive VOC content limit shall 

apply. This provision does not apply to the coating categories specified in 

subsections D.2.a B.2.a through D.2.o B.2.o below.

D.2.a B.2.a Antenna coatings

D.2.b B.2.b Antifouling coatings

D.2.c B.2.c Bituminous roof primers

D.2.d B.2.d Fire retardant coatings

D.2.e B.2.e Flow Coatings

D.2.f B.2.f High temperature coatings

D.2.g B.2.g Industrial maintenance coatings

D.2.h B.2.h Lacquer coatings (including lacquer sanding sealers)

D.2.i B.2.i Low solids coatings

D.2.j B.2.j Metallic pigmented coatings

D.2.k B.2.k Pretreatment wash primers

D.2.l B 2.l Shellacs

D.2.m B.2.m Specialty primers, sealers, and undercoaters

D.2.n B.2.n Temperature indicator safety coatings

D.2.o B 2.o Wood preservative

Effective January 1, 2011, If a coating meets the definition in Rule 101 for 

one or more specialty coating categories that are listed in Table 424-1 and 

Table 424-2, then that coating is not required to meet the VOC limits for 

Flat, Nonflat, or Non-flat – High Gloss coatings, but is required to meet 

VOC limit for the applicable specialty coating listed in Table 424-2.

Effective January 1, 2011, with the exception of the specialty coating 

categories specified in subsection D.2.p through D.2.ee below, if a coating 

is recommended for use in more than one of the specialty coating 

categories listed in Table 424-2, the most restrictive (or lowest) VOC 

content limit shall apply. This requirement applies to: usage 

recommendations that appear anywhere on the coating container, 

anywhere on any label or sticker affixed to the container, or in any sales, 

advertising, or technical literature supplied by a manufacturer or anyone 

acting on their behalf.

D.2.p Aluminum roof coatings

D.2.q Basement specialty coatings

D.2.r Bituminous roof primers

D.2.s High temperature coatings

D.2.t Industrial maintenance coatings

D.2.u Low-solids coatings

D.2.v Metallic pigmented coatings
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D.2.w Pretreatment wash primers

D.2.x Reactive penetrating sealers

D.2.y Shellacs

D.2.z Specialty primers, sealers, and undercoaters

D.2.aa Stone consolidants

D.2.bb Tub and tile refinish coatings

D.2.cc Wood coatings

D.2.dd Wood preservatives

D.2.ee Zinc-rich primers

DB.3 Sell-Through of Coatings: A coating manufactured prior to the effective 

date specified for that coating in Table 424-2, and that complied with the 

standards in effect at the time the coating was manufactured, may be sold, 

supplied, or offered for sale for up to three years after the specified 

effective date. In addition, such coating may be applied at any time, both 

before and after the specified effective date. This subsection B D.3 does 

not apply to any coating that does not display the date or date-code 

required by subsections E.1 C.1.

DB.4 Painting Practices: All architectural coating containers used to apply the 

contents therein to a surface directly from the container by pouring, 

siphoning, brushing, rolling, padding, ragging or other means, shall be 

closed when not in use. These architectural coating containers include, 

but are not limited to, drums, buckets, cans, pails, trays or other 

application containers. Containers or any VOC containing materials used 

for thinning and cleanup shall also be closed when not in use.

DB.5 Thinning: No person who applies or solicits the application of any 

architectural coating shall apply a coating that is thinned to exceed the 

applicable VOC limit specified in Table 424-1 and Table 424-2.

DB.6 Rust Preventative Coatings: Effective until January 1, 2012 upon 

adoption of this rule, a person shall only apply or solicit the application of a 

rust preventative coating for non-industrial use, unless the rust 

preventative coating complies with the industrial maintenance coating 

VOC limit specified in subsection D.1 Table 424-1.

DB.7 Coatings Not Listed in Table 424-1 and Table 424-2: For any coating 

that does not meet any of the definitions for the specialty coatings 

categories listed in Table 424-1 and Table 424-2, the VOC content limit 

shall be determined by classifying the coating as a f Flat, Nonflat, or 

Nonflat-High Gloss coating or a nonflat coating, based on its gloss, as 

defined in Rule 101, -d Definitions and the corresponding f Flat, Nonflat, or 

n Nonflat – High Gloss coating VOC limit shall apply.

DB.8 Lacquers: Effective until January 1, 2011, N notwithstanding the 
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provisions of subsection BD.1 and D.5, a person or facility may add up to 

10 percent by volume of VOC to a lacquer to avoid blushing of the finish 

during days with relative humidity greater than 70 percent and 

temperature below 65F, at the time of application, provided that the 

coating contains acetone and is no more than 550 grams of VOC per liter 

of coating, less water and exempt compounds, prior to the addition of to

VOC.

EC. Container Labeling Requirements

Each manufacturer of any architectural coating subject to this rule shall display 

the information listed in sections C E.1 through C.9 E.14 on the coating container 

(or label) in which the coating is sold or distributed.

EC.1 Date Code: The date the coating was manufactured, or a date code 

representing the date, shall be indicated on the label, lid, or bottom of the 

container. If the manufacturer uses a date code for any coating, the 

manufacturer shall file an explanation of each code with the Executive 

Officer of the California Air Resources Board.

EC.2 Thinning Recommendations: A statement of the manufacturer’s 

recommendation regarding thinning of the coating shall be indicated on 

the label or lid of the container. This requirement does not apply to the 

thinning of architectural coatings with water. If thinning of the coating prior 

to use is not necessary, the recommendation must specify that the coating 

is to be applied without thinning.

EC.3 VOC Content: Each container of any coating subject to this rule shall 

display one of the following values in grams of VOC per liter of coating:

either the maximum or the actual VOC content of the coating, as supplied, 

including the maximum thinning as recommended by the manufacturer. 

VOC content shall be displayed in grams of VOC per liter of coating.

E.3.a Maximum VOC Content as determined from all potential product 

formulations; or

E.3.b VOC c Content displayed as determined from actual formulation 

data, or 

E.3.c VOC Content shall be as determined using the test methods in 

subsection G.2 D.3. 

The equation in section D.2 shall be used to calculate VOC content.

If the manufacturer does not recommend thinning, the container must 

display the VOC Content, as supplied. If the manufacturer recommends 
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thinning, the container must display the VOC Content, including the 

maximum amount of thinning solvent recommended by the manufacturer. 

If the coating is a multi-component product, the container must display the 

VOC content as mixed or catalyzed. If the coating contains silanes, 

siloxanes, or other ingredients that generate ethanol or other VOC’s 

during the curing process, the VOC content must include the VOC’s 

emitted during curing. VOC Content shall be determined as defined in 

Rule 101-Definitions.

E.4 Faux Finishing Coatings: Effective January 1, 2011, the labels of all 

clear topcoat Faux Finishing coatings shall prominently display the 

statement “This product can only be sold or used as part of a Faux 

Finishing coating system.”

E.5C.4Industrial Maintenance Coatings: Effective January 1, 2011, the labels 

of all Industrial Maintenance coatings shall prominently display the 

statement “For industrial use only” or “For professional use only” or “Not 

For Residential Use” or “Not Intended For Residential Use”.

In addition to the information specified in section C.1, C.2, and C.3 each 

manufacturer of any industrial maintenance coating subject to this rule 

shall display on the label or lid of the container in which the coating is sold 

or distributed one or more of the descriptions listed below:

C.4.1 For industrial use only.@

C.4.2 For professional use only.@

C.4.3 ANot for residential use@ or ANot intended for residential use.@

E.6C.5Clear Brushing Lacquers: Effective three months after adoption of this 

rule, Until January 1, 2011, the labels of all clear brushing lacquers shall 

prominently display the statements AFor brush application only,@ and AThis 

product must not be thinned or sprayed.@

E.7C.6Rust Preventative Coatings: The labels of all rust preventive coatings 

shall prominently display the statement “For Metal Substances Only.”

Effective three months after adoption of this rule, the labels of all rust 

preventative coatings shall prominently display the statement AFor Metal 

Substrates Only.@

E.8C.7Specialty Primers, Sealers, and Undercoaters: Effective three months 

after adoption of this rule, the labels of all specialty primers, sealers, and 

undercoaters shall prominently display one or more of the descriptions 

listed below:

Until January 1, 2012, the labels of all specialty primers, sealers, and 
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undercoaters shall prominently display one or more of the descriptions 

listed in subsection E.8.a thru E.8.c.

C.7.1 For blocking stains

E.8.aC.7.2 For fire-damaged substrates

E.8.bC.7.3 For smoke-damaged substrates

E.8.cC.7.4 For water-damaged substrates

C.7.5 For excessively chalky substrates

E.9C.8Quick Dry Enamels: Effective three months after adoption of this rule, 

Until January 1, 2011, the labels of all quick dry enamels shall prominently 

display the words AQuick Dry@ and the dry hard time.

E.10 Reactive Penetrating Sealers: Effective January 1, 2011, the labels of all 

Reactive Penetrating Sealers shall prominently display the statement 

“Reactive Penetrating Sealer”.

E.11 Stone Consolidants: Effective Janaury 1, 2011, the labels of all Stone 

Consolidants shall prominently display the statement “Stone Consolidant –

For Professional Use Only”. 

EC.912Nonflat - High Gloss Coatings: The labels of all Nonflat-High Gloss 

coatings shall prominently display the words “High Gloss.”

Effective three months after adoption of this rule, the labels of all nonflat -

high gloss coatings shall prominently display the words AHigh Gloss.

E.13 Wood Coatings: Effective January 1, 2011 the labels of al Wood 

Coatings shall prominently display the statement “For Wood Substrates 

Only.”

E.14 Zinc Rich Primers: Effective January 1, 2011, the labels of all Zinc Rich 

primers shall prominently display the statement “For Professional Use 

Only” or “Not For Residential Use” or “Not Intended For Residential Use” 

or “For Industrial Use Only”.

F. Reporting Requirements

F.1 Sales Data: A responsible official from each manufacturer shall upon 

request of the Executive Officer of the California Air Resources Board, or 

his or her delegate, provide data concerning the distribution and sales of 

architectural coatings. The responsible official shall within 180 days 

provide information, including, but not limited to:

F.1.a the name and mailing address of the manufacturer;
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F.1.b the name, address and telephone number of a contact person;

F.1.c the name of the coating product as it appears on the label and the 

applicable coating category;

F.1.d whether the product is marketed for interior or exterior use or both;

F.1.e the number of gallons sold in California in containers greater than 

one liter (1.057 quart) and equal to or less than one liter (1.057 

quart);

F.1.f the VOC Actual content and VOC Regulatory content in grams per 

liter. If thinning is recommended, list the VOC Actual content and 

VOC Regulatory content after maximum recommended thinning. If 

containers less than one liter have a different VOC content than 

containers greater than one liter, list separately. If the coating is a 

multi-component product, provide the VOC content as mixed or 

catalyzed;

F.1.g the names and CAS numbers of the VOC constituents in the 

product;

F.1.h the names and CAS number of any compounds in the product 

specifically exempted from the VOC definition, as listed in Rule 

101-Definitions;

F.1.i whether the product is marketed as solventborne, waterborne, or 

100% solids;

F.1.j description of resin or binder in the product;

F.1.k whether the coating is a single-component or multi-component 

product;

F.1.l the density of the product in pounds per gallon;

F.1.m the percent by weight of: solids, all volatile materials, water, and 

any compounds in the product specifically exempted from the VOC 

definition, as listed in Rule 101-Definitions; and

F.1.n the percent by volume of: solids, water, and any compounds in the 

product specifically exempted from the VOC definition, as listed in 

Rule 101-Definitions.

F.2 All sales data listed in subsection F.1.a thru F.1.n shall be maintained by 

the responsible official for a minimum of three years. Sales data 

submitted by the responsible official to the Executive Officer of the 

California Air Resources Board may be claimed as confidential, and such 

information shall be handled in accordance with the procedures specified 

in Title 17, California Code of Regulations Sections 91000-91022.

GD. Compliance Provisions and Test Methods

GD.1 Calculation of VOC Content: for the purpose of determining compliance 

with the VOC content limits in Table 424-1 and Table 424-2, the VOC 

content of a coating shall be determined as defined in Rule 101-

Definitions. by using the procedures described in D.2. The VOC content 
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(Ws-Ww-Wec)

1s (Vm)

of a tint base shall be determined without colorant that is added after the 

tint base is manufactured. If the manufacturer does not recommend 

thinning, the VOC Content must be calculated for the product as supplied. 

If the manufacturer recommends thinning, the VOC Content must be 

calculated including the maximum amount of thinning solvent 

recommended by the manufacturer. If the coating is a multi-component 

product, the VOC content must be calculated as mixed or catalyzed. If the 

coating contains silanes, siloxanes, or other ingredients that generate 

ethanol or other VOCs during the curing process, the VOC content must 

include the VOCs emitted during curing. 

D.2 Calculation for the determination of VOC content per volume of coating:

D.2.a With the exception of low solids coatings, determine the VOC 

content in grams of VOC per liter of coating thinned to the 

manufacturer=s maximum recommendation, excluding the volume 

of any water and exempt compounds. Determine the VOC content 

using equation 1 as follows:

(1) VOC Content = 

Where:

VOC Content=grams of VOC per liter of coating

Ws = weight of volatiles, in grams 

Ww = weight of water, in grams

Wec = weight of exempt compounds, in grams

Vm = volume of coating, in liters 

Vw = volume of water, in liters

Vec = volume of exempt compounds, in liters 

D.2.b For low solids coatings, determine the VOC content in units of 

grams of VOC per liter of coating thinned to the manufacturer=s 

maximum recommendation, including the volume of any water and 

exempt compounds. Determine the VOC content using equation 2 

as follows:

 VOC Content =

 Where:

VOC Content = the VOC content of a low solids coating in 

grams of VOC per liter of coating

Ws = weight of volatiles, in grams

Ww = weight of water, in grams

Wec = weight of exempt compounds, in grams

Vm = volume of coating, in liters

(Ws-Ww-Wec)

(Vm-Vw-Vec)

1s
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G.2D.3VOC Content of Coatings: To determine the physical properties of a 

coating in order to perform the calculations found in Rule 101-Definitions

subsection D.2.a, the reference method for VOC content is U.S. EPA 

Method 24, incorporated by reference in subsection G.5.k D.6.11, except 

as provided in subsections G.3 D.4 and G.4 D.5. An alternative method to 

determine the VOC content of coatings is the South Coast Air Quality 

Management District (SCAQMD) Method 304-91 (Revised February 

1996), incorporated by reference in subsection G.5.l D.6.12. The exempt 

compounds content shall be determined by SCAQMD Method 303-91 

(Revised 1993 August 1996), Bay Area Air Quality Management District 

(BAAQMD) Method 43 (Revised 1996), or BAAQMD Method 41 (Revised 

1995), as applicable, incorporated by reference in subsections G.5.h, 

G.5.i, and G.5.j, respectively D.6.10. To determine the VOC content of a 

coating, the manufacturer may use U.S. EPA Method 24, or an alternative 

method as provided in subsection G.3 D.4, formulation data, or any other 

reasonable means for predicting that the coating has been formulated as 

intended (e.g., quality assurance checks, record keeping). However, if 

there are any inconsistencies between the results of a Method 24 test and 

any other means for determining VOC content, the Method 24 test results 

will govern, except when an alternative method is approved as specified in 

subsection G.3 D.4. The District Air Pollution Control Officer (APCO) may 

require the manufacturer to conduct a Method 24 analysis.

GD.4.3Alternative Test Methods: Other test methods demonstrated to provide 

results that are acceptable for purposes of determining compliance with 

subsection G.2 D.3, after review and approved in writing by the staffs of 

the District, the ARB, and the U.S. EPA, may also be used.

GD.54Methacrylate Traffic Marking Coatings: Analysis of methacrylate 

multicomponent coatings used as traffic marking coatings shall be 

conducted according to a modification of U.S. EPA Method 24 (40 CFR 

59, subpart D, Appendix A), incorporated by reference in subsection

G.5.m D.6.m. This method has not been approved for methacrylate 

multicomponent coatings used for other purposes than as traffic marking 

coatings or for other classes of multicomponent coatings.

GD.65Test Methods: The following test methods are incorporated by reference 

herein, and shall be used to test coatings subject to the provisions of this 

rule.

G.5D.6.aFlame Spread Index: The flame spread index of a fire-retardant 

coating shall be determined by ASTM Designation E 84-99 84-07, 

“Standard Test Method for Surface Burning Characteristics of 

Building Materials” (see r Rule 101, Fire-Retardant Coating).
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G.5D.6.bFire Resistance Rating: The fire resistance rating of a fireresistive coating shall be determined by ASTM Designation E119-

07 98, “Standard Test Methods for Fire Tests of Building 

Construction Materials” (see r Rule 101, Fire-Resistive Coating).

G.5D.6.cGloss Determination: The gloss of a coating shall be 

determined by ASTM Designation D523-89 (1999). “Standard 

Test Method for Specular Gloss”(see r Rule 101, Flat Coating, 

Nonflat Coating, and Nonflat - High Gloss Coating and Quick-Dry 

Enamel).

G.5D.6.dMetal Content of Coatings: The metallic content of a coating 

shall be determined by SCAQMD Method 318-95, “Determination 

of Weight Percent Elemental Metal in Coatings by X-Ray 

Diffraction,” SCAQMD Laboratory Methods of Analysis for 

Enforcement Samples (see r Rule 101, Aluminum Roof Coatings, 

Faux Finishing Coatings, and Metallic Pigmented Coating).

G.5D.6.eAcid Content of Coatings: The acid content of a coating shall 

be determined by ASTM Designation D1613-06 96, “Standard 

Test Method for Acidity in Volatile Solvents and Chemical 

Intermediates Used in Paint, Varnish, Lacquer, and Related 

Products” (see r Rule 101, Pre-Treatment Wash Primer).

G.5D.6.fDrying Times: The set-to-touch, dry-hard, dry-to-touch, and dryto-recoat times of a coating shall be determined by ASTM 

Designation D1640-95, AStandard Test Methods for Drying, Curing, 

or Film Formation of Organic Coatings at Room Temperature@ (see 

r Rule 101, Quick-Dry Enamel and Quick-Dry Primer, Sealer, and 

Undercoater). The tack-free time of a quick-dry enamel coating 

shall be determined by the Mechanical Test Method of ASTM 

Designation D1640-95.

G.5D.6.gSurface Chalkiness: The chalkiness of a surface shall be 

determined using ASTM Designation D4214-98, AStandard Test 

Methods for Evaluating the Degree of Chalking of Exterior Paint 

Films@ (see r Rule 101, Specialty Primer, Sealer, and Undercoater).

G.5D.6.hExempt Compounds-Siloxanes: Exempt compounds that are 

cyclic, branched, or linear completely methylated siloxanes, shall 

be analyzed as exempt compounds for compliance with section 

6G by BAAQMD Method 43, “Determination of Volatile 

Methylsiloxanes in Solvent-Based Coatings, Inks, and Related 

Materials,” BAAQMD Manual of Procedures, Volume III, adopted 
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11/6/96 (see r Rule 101, Volatile Organic Compound, and 

subsection G.2 D.3).

G.5D.6.iExempt Compunds-Parachlorobenzotrifluoride (PCBTF): The 

exempt compound parachlorobenzotribfluoride, shall be analyzed 

as an exempt compound for compliance with section G 8 by 

BAAQMD Method 41, “Determination of Volatile Organic 

Compounds in Solvent Based Coatings and Related Materials 

Containing Parachlorobenzotribluoride.” BAAQMD Manual of 

Procedures, v Volume III, adopted 12/20/95 (see r Rule 101, 

Volatile Organic Compound, and subsection G.2 D.3.).

G.5D.6.jExempt Compounds: The content of compounds exempt under 

U.S. EPA Method 24 shall be analyzed by SCAQMD Method 303-

91 (Revised 1993), “Determination of Exempt Compounds,” 

(SCAQMD Laboratory Methods of Analysis for Enforcement 

Samples (see r Rule 101, Volatile Organic Compound, and 

subsection G.2 D.3).

G.5D.6.kVOC Content of Coatings: The VOC content of a coating shall 

be determined by U.S. EPA Method 24 as it exists in appendix A 

of 40 Code of Federal Regulations (CFR) part 60, “Determination

of Volatile Matter Content, Water Content, Density, Volume 

Solids, and Weight Solids of Surface Coatings” (see subsection

G.2 D.3).

G.5D.6.lAlternative VOC Content of Coatings: The VOC content of 

coatings may be analyzed either by U.S. EPA Method 24 or 

SCAQMD Method 304-91 (Revised 1996), ADetermination of 

Volatile Organic Compounds (VOC) in Various Materials,” 

SCAQMD Laboratory Methods of Analysis for Enforcement 

Samples (see subsection G.2D.3).

G.5D.6.mMethacrylate Traffic Marking Coatings: The VOC content of 

methacrylate multicomponent coatings used as traffic marking 

coatings shall be analyzed by the procedures in 40 CFR part 59, 

subpart D, appendix A, “Determination of Volatile Matter Content 

of Methacrylate Multicomponent Coatings Used as Traffic Marking 

Coatings”(September 11, 1998) (see subsection G.4D.5).

G.5.n Hydrostatic Pressure for Basement Specialty Coatings: ASTM 

D7088-04 “Standard Practice for Resistance to Hydrostatic 

Pressure for Coatings Used in Below Grade Applications Applied to 

Masonry” (see Rule 101, Basement Specialty Coating).
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G.5.m Gonioapparent Characteristics for Coatings: ASTM E-284-07, 

“Standard Terminology of Appearances” (see Rule 101, 

Gonioapparent).

G.5.o Tub and Tile Refinish Coating Adhesion: ASTM D4585-99, 

“Standard Practice for Testing Water Resistance of Coatings Using 

Controlled Condensation” and ASTM D3359-02, “Standard Test 

Methods for Measuring Adhesion by Tape Test” (see Rule 101, Tub 

and Tile Refinish Coating).

G.5.p Tub and Tile Refinish Coating Hardness: ASTM D3363-05, 

“Standard Test Method for Film Hardness by Pencil Test” (see Rule 

101, Tub and Tile Refinish Coating).

G.5.q Tub and Tile Refinish Coating Abrasion Resistance: ASTM 

D4060-07, “Standard Test Methods for Abrasion Resistance of 

Organic Coatings by the Taber Abraser” (Rule 101, Tub and Tile 

Refinish Coating).

G.5.r Tub and Tile Refinish Coating Water Resistance: ASTM D4585-

99, “Standard Practice for Testing Water Resistance of Coatings 

Using Controlled Condensation” and ASTM D714-02e1, “Standard 

Test Method for Evaluating Degree of Blistering of Paints” (see 

Rule 101, Tub and Tile Refinish Coating).

G.5.s Waterproofing Membrane: ASTM C836-06, “Standard 

Specification for High Solid Content, Cold Liquid-Applied 

Elastomeric Waterproofing Membrane for Use with Separate 

Wearing Course” (see Rule 101, Waterproofing Membrane).

G.5.t Mold and Mildew Growth for Basement Specialty Coatings: 

ASTM D3273-00, “Standard Test Method for Resistance to Growth 

of Mold on the Surface of Interior Coatings in an Environmental 

Chamber” and ASTM D3274-95, “Standard Test Method for 

Evaluating Degree of Surface Disfigurement of Paint Films by 

Microbial (Fungal or Algal) Growth of Soil and Dirt Accumulation” 

(see Rule 101, Basement Specialty Coating).

G.5.u Reactive Penetrating Sealer Water Repellency: ASTM C67-07, 

“Standard Test Method for Sampling and Testing Brick and 

Structural Clay Tile”; or ASTM C97-02, “Standard Test Methods for 

Absorption and Bulk Specific Gravity of Dimension Stone”, or 

ASTM C140-06, “Standard Test Methods for Sampling and Testing

Concrete Masonry Units and Related Units” (see Rule 101, 

Reactive Penetrating Sealer.)
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G.5.v Reactive Penetrating Sealer Water Vapor Transmission: ASTM 

E96/E96M-05, “Standard Test Method for Water Vapor 

Transmission of Materials” (see Rule 101, Reactive Penetrating 

Sealer).

G.5.w Reactive Penetrating Sealer – Chloride Screening 

Applications: National Cooperative Highway Research Report 244 

(1981), ”Concrete Sealers for the Protection of Bridge Structures”

(see Rule 101, Reactive Penetrating Sealer).

G.5.x Stone Consolidants: ASTM E2167-01, “Standard Guide for 

Selection and Use of Stone Consolidants” (see Rule 101, Stone 

Consolidant).

E. Reporting Requirements

E.1 Clear Brushing Lacquers: Each manufacturer of clear brushing lacquers 

shall, on or before April 1 of each calendar year, submit an annual report 

to the Executive Officer of the California Air Resources Board (ARB). The 

report shall specify the number of gallons of clear brushing lacquers sold 

in the State during the preceding calendar year, and shall describe the 

method used by the manufacturer to calculate State sales.

E.2 Rust Preventative Coatings: Each manufacturer of rust preventative 

coatings shall, on or before April 1 of each calendar year, submit an 

annual report to the Executive Officer of the ARB. The report shall specify 

the number of gallons of rust preventative coatings sold in the State during 

the preceding calendar year, and shall describe the method by the 

manufacturer to calculate State sales.

E.3 Specialty Primers, Sealer, and Undercoaters: Each manufacturer of 

specialty primers, sealers, and undercoaters shall, on or before April 1 of 

each calendar year, submit an annual report to the Executive Officer of the 

ARB. The report shall specify the number of gallons of specialty primers, 

sealers, and undercoaters sold in the State during the preceding calendar 

years, and shall describe the method used by the manufacturer to 

calculate State sales.

E.4 Toxic Exempt Compounds: For each architectural coating that contains 

perchloroethylene or methylene chloride, the manufacturer shall, on or 

before April 1 of each calendar year, report to the Executive Officer of the 

ARB the following information for products sold in the State during the 

preceding year.
Imperial County Air Pollution Control District Rule 424

424-14

E.4.a the product brand name and a copy of the product label with legible 

usage instructions;

E.4.b the product category listed in Table 424-1 to which the coating 

belongs;

E.4.c the total sales in California during the calendar year to the nearest 

gallon;

E.4.d the volume percent, to the nearest 0.10 percent, of 

perchloroethylene and methylene chloride in the coating.

E.5 Recycled Coatings: Manufacturers of recycled coatings must submit a 

letter to the Executive Officer of the ARB certifying their status as a 

Recycled Paint Manufacturer. The manufacturer shall, on or before April 1 

of each calendar year, submit an annual report to the Executive Officer of 

the ARB. The report shall include, for all recycled coatings, the total 

number of gallons distributed in the State during the preceding year, and 

shall describe the method used by the manufacturer to calculate State 

distribution.

E.6 Bituminous Coatings: Each manufacturer of bituminous roof coatings or 

bituminous rood primers shall, on or before April 1 of each calendar year, 

submit an annual report to the Executive Officer of the ARB. The report 

shall specify the number of gallons of bituminous roof coatings or 

bituminous roof primers sold in the State during the preceding calendar 

year, and shall describe the method used by the manufacturer to calculate 

State sales.
Imperial County Air Pollution Control District Rule 424

424-15

TABLE 424-1

Table of Architectural Coating Standards

(grams of VOC per liter of Coating as applied, less water and Exempt Compound 

and excluding any colorant added to tint bases)

TABLE 424-1

VOC CONTENT LIMITS FOR ARCHITECTURAL COATINGS

Limits are expressed as VOC Regulatory, thinned to the manufacturer’s maximum 

thinning recommendation, excluding any colorant added to tint bases.

Table effective until January 1, 2011

Coating Category

Effective 

5/1/2005

Flat Coatings 100

Nonflat Coatings 150

Nonflat-High Gloss Coatings 250

Specialty Coatings

Antenna Coatings 530

Antifouling Coatings 400

Bituminous Roof Coatings 300

Bituminous Roof Primers 350

Bond Breakers 350

Clear Wood Coatings

 Clear Brushing Lacquers 680

Varnishes 350

Sanding Sealers (other than lacquer sanding sealers) 350

Lacquers (including lacquer sanding sealers) 550

Concrete Curing Compounds 350

Dry Fog Coatings 400

Faux Finishing Coatings 350

Fire Resistive Coatings 350

Fire Retardant Coatings 

Clear 650

Opaque 350

Floor Coatings 250

Flow Coatings 420

Form-Release Compounds 250

Graphic Arts (Sign) Coatings (Sign Paints) 500

High Temperature Coatings 420

Industrial Maintenance Coatings 250

Low Solids Coatingsba120

Magnesite Cement Coatings 450
Imperial County Air Pollution Control District Rule 424

424-16

TABLE 424-1

VOC CONTENT LIMITS FOR ARCHITECTURAL COATINGS

Limits are expressed as VOC Regulatory, thinned to the manufacturer’s maximum 

thinning recommendation, excluding any colorant added to tint bases.

Table effective until January 1, 2011

Coating Category

Effective 

5/1/2005

Mastic Texture Coatings 300

Metallic Pigmented Coatings 500

Multi-Color Coatings 250

Pre-treatment Wash Primers 420

Primers, Sealers & Undercoaters 200

Quick-Dry Enamels 250

Quick-Dry Primers, Sealers, and Undercoaters 200

Recycled Coatings 250

Roof Coatings 250

Rust Preventative Coatings 400

Shellac:

Clear 730

Opaque 550

Specialty Primers, Sealers, and Undercoaters 350

Stains 250

Swimming Pool Coatings 340

Swimming Pool Repair and Maintenance Coatings 340

Temperature-Indicator Safety Coatings 550

Traffic Marking Coatings 150

Waterproofing Concrete/Masonry Sealers 400

Waterproofing Sealers 250

Wood Preservatives 350

b units are grams of VOC per liter (pounds of VOC per gallon) of coating, including water and exempt compounds.

a. Limit is expressed as VOC Actual.
Imperial County Air Pollution Control District Rule 424

424-17

TABLE 424-2

VOC CONTENT LIMITS FOR ARCHITECTURAL COATINGS

Limits are expressed as VOC Regulatory, thinned to the manufacturer’s maximum thinning 

recommendation, excluding any colorant added to tint bases.

Table becomes effective January 1, 2011

Coating Category

Effective Effective

1/1/2011 1/1/2012

Flat Coatings 100 50

Nonflat Coatings 100

Nonflat-High Gloss Coatings 150

Specialty Coatings

Aluminum Roof Coatings 400

Basement Specialty Coatings 400

Bituminous Roof Coatings 50

Bituminous Roof Primers 350

Bond Breakers 350

Concrete Curing Compounds 350

Concrete/Masonry Sealers 100

Driveway Sealers 50

Dry Fog Coatings 150

Faux Finishing Coatings 350

Fire Resistive Coatings 350

Floor Coatings 100

Form-Release Compounds 250

Graphic ArtsCoatings (Sign Paints) 500

High Temperature Coatings 420

Industrial Maintenance Coatings 250

Low Solids Coatingsa120

Magnesite Cement Coatings 450

Mastic Texture Coatings 100

Metallic Pigmented Coatings 500

Multi-Color Coatings 250

Pre-treatment Wash Primers 420

Primers Sealers & Undercoaters 200 100

Reactive Penetrating Sealers 350

Recycled Coatings 250

Roof Coatings 50

Rust Preventative Coatings 400 250

Shellac:

Clear 730

Opaque 550
Imperial County Air Pollution Control District Rule 424

424-18

TABLE 424-2

VOC CONTENT LIMITS FOR ARCHITECTURAL COATINGS

Limits are expressed as VOC Regulatory, thinned to the manufacturer’s maximum thinning 

recommendation, excluding any colorant added to tint bases.

Table becomes effective January 1, 2011

Coating Category

Effective Effective

1/1/2011 1/1/2012

Specialty Primers, Sealers, and Undercoaters 350 100

Stains 250

Stone Consolidants 450

Swimming Pool Coatings 340

Traffic Marking Coatings 100

Tub and Tile Refinish Coatings 420

Waterproofing Membranes 250

Wood Coatings 275

Wood Preservatives 350

Zinc-Rich Primers 340

a. Limit is expressed as VOC Actual.