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EPA Approved Air Quality Regulations for Guam

EPA’s Pacific Southwest (Region 9) implements and enforces federal environmental laws in Arizona, California, Hawaii, Nevada, the Pacific Islands, and 148 Tribal Nations.

The following document and table contain the EPA approved Air Quality Regulations for Guam. EPA's Pacific Southwest Office maintains this document and table and will update them to reflect any changes in the official tables codified in the Code of Federal Regulations. To find the status of SIP submittals, visit SIP Status Reports.

The official SIPs, TIPs, and FIPs are contained in regulations promulgated in the Federal Register and codified in the U.S. Code of Federal Regulations (CFR). EPA’s web-versions of the approved SIPs, TIPs, and FIPs are for reference. While we make every effort to maintain the accuracy of the files accessible here, inconsistencies may occur. If you find any errors in these files, or experience a problem reading a document with assistive technology, please contact us.

On this page:

Compiled Rules and Regulations
Approved Air Quality Regulations for Guam
Post-2011 Compilation of Rules and Regulations

EPA Approved and Compiled Rules and Regulations

Free viewers and readers are available to access documents on our website. If you encounter issues with assistive technology, please contact us.

EPA Approved Guam Air Regulation Compilation (pdf) (3.27 MB, October 2025)
EPA compiled and approved rules and regulations of the Guam State Implementation Plan (SIP).

EPA Approved Air Quality Regulations for Guam

State Citation	Title/Subject	Effective Date	EPA approval Date	Explanation
Chapter 01	Definitions (1.1-1.17, 1.20-1.43)	8/24/1979	05/12/81, 46 FR 26303
Chapter 02.1-02.2	Ambient Air Quality Standards	8/8/1973	12/19/78, 43 FR 48638
Chapter 02.3-02.4	Ambient Air Quality Standards	1/13/1972	5/31/72, 37 FR 10842
Chapter 03.01-03.09	Permits Required, etc.	8/24/1979	5/12/81, 46 FR 26303
Chapter 03.10, 3.11 and 03.13	Responsibility of the Permit Holder, etc. (for complex sources only)	8/8/1973	12/19/78, 43 FR 48638
Section 1104.26	Permit Compliance	06/03/2005	2/27/06, 71 FR 9716
Chapter 04.1-04.4	Monitoring, Records and Reporting	8/24/1979	5/12/81, 46 FR 26303
Chapter 05.1-05.2	Sampling and Testing Methods	1/13/1972	5/31/72, 37 FR 10842
Chapter 05.3	Sampling and Testing Methods	8/24/1979	5/12/81, 46 FR 26303
Chapter 06.1	Control of Open Burning	1/13/1972	5/31/72, 37 FR 10842
Chapter 06.2	Exceptions	8/24/1979	5/12/81, 46 FR 26303
Chapter 06.3	Outdoor Cooking Waiver	1/13/1972	5/31/72, 37 FR 10842
Chapter 07.1	Control of Particulate Emissions from Process Industries	8/24/1979	5/12/81, 46 FR 26303
Chapter 07.2-07.3	Process Weight	8/8/1973	12/19/78, 43 FR 48638
Chapter 07.4-07.5	Process Weight Table	8/24/1979	5/12/81, 46 FR 26303
Chapter 08.1-08.2	Control of Fugitive Dust	8/8/1973	12/19/78, 43 FR 48638
Chapter 08.3-08.6	Specific Requirements	8/24/1979	5/12/81, 46 FR 26303
Chapter 08.8-08.9	Compliance Schedule	8/8/1973	12/19/78, 43 FR 48638
Chapter 09.1-09.9	Control of Particulate Emission from Incinerator; Design and Operation	1/13/1972	5/31/72, 37 FR 10842
Chapter 10.1-10.2	Control of Visible Emission of Particulates for Stationary Sources	8/24/1979	5/12/81, 46 FR 26303
Chapter 11.1-11.3	Control of Odors in Ambient Air	1/13/1972	5/31/72, 37 FR 10842
Chapter 12.1; 12.2 & 12.4	Air Pollution Emergencies	8/24/1979	5/12/81, 46 FR 26303
Chapter 13.1	Control of Sulfur Dioxide Emissions	8/24/1979	5/12/81, 46 FR 26303	For All Sources except Tanguisson Power Plant.
Chapter 13.1	Addendum to 13.1	1/28/1980	5/12/81, 46 FR 26303	Compliance Order for Inductance.
Chapter 13.2	Control of Sulfur Dioxide Emissions	1/13/1972	5/31/72, 37 FR 10842	For Tanguisson Power Plant only.
Chapter 13.3 & 13.4	Control of Sulfur Dioxide Emissions	8/24/1979	3/06/80, 45 FR 14559
Chapter 14.1-14.7	Motor Vehicle Pollution Control	8/24/1979	5/12/81, 46 FR 26303
Chapter 17.1-17.4	Appeal Procedures, Circumvention, Severability, and Effective Date	12/11/1981	9/30/82, 47 FR 43054

Post-2011 Compilation of Rules and Regulations

Title 22, Division 1, Chapter 1

Article 8

State Citation	Title/Subject	Effective Date	EPA Approval Date	Explanation
Section 1801	Applicability Procedures	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1801.1	Preconstruction Review Requirements	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1801.2	Nonattainment Major New Source Review (NSR) Permit Requirement	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1801.3	Emission Calculation Requirements to Determine New Source Review (NSR) Applicability	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1801.4	Major Sources with Plant-Wide Applicability Limitations	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1801.5	Projects That Rely on a Projected Actual Emissions Test	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1801.6	Secondary Emissions	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1801.7	Stationary Sources	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1801.8	Environmental Protection Agency Determination	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1802	Definitions	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1803	Application Requirements	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1803.1	Application Submittal	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1803.2	Application Content	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1803.3	Lowest Achievable Emission Rate (LAER)	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1803.4	Certification of Compliance	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1803.5	Analysis of Alternatives	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1803.6	Application Fees	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1804	Emissions Offsets	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1804.1	Offset Requirements	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1804.2	Timing	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1804.3	Quantity	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1804.4	Emission Reduction Requirements	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1804.5	Restrictions on Trading Pollutants	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1805	Administrative Requirements	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1805.1	Ambient Air Quality Standards	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1805.2	Air Quality Models	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1805.3	Stack Height Procedures	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1806	Nonattainment Major New Source Review (NSR) Permit—Decision	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1806.1	Preliminary Decision	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1806.2	Nonattainment Major New Source Review (NSR) Permit—Preliminary Decision Requirements	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1806.3	Nonattainment Major New Source Review (NSR) Permit Contents	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1806.4	Nonattainment Major New Source Review (NSR) Permit—Final Decision	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1806.5	Ongoing Permit Requirements	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1806.6	Technology Clearinghouse	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1807	Source Obligations	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1807.1	Enforcement	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1807.2	Termination	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1807.3	Compliance	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1807.4	Relaxation in Enforceable Limitations	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1808	Public Participation	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1809	Plant-Wide Applicability Limits (PAL)	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1810	Invalidation	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.
Section 1811	Effective Date for Referenced Federal Regulations	12/29/2022	9/18/2025, 90 FR 44987	Submitted on March 13, 2025, as an attachment to a letter of the same date.