Clean Air Branch

In accordance with the State’s efforts and the Governor’s Plan to slow the spread of the COVID-19 virus, please be advised of the following:

  • The majority of the Clean Air Branch (CAB) staff are currently teleworking.  The CAB office will continue its operations with a reduced number of staff physically located at the office.  Please be aware that there may be some delays while we transition to this new mode of work.  However, we will try our best to continue to serve you in an effective manner.
  • To minimize personal contact and promote social distancing, we are temporarily suspending in-person meetings.  The CAB also asks the public to minimize any in-person visits to our office and to conduct business over the phone or through email whenever possible.
  • Staff will continue to be available for assistance by phone (808) 586-4200 during normal business hours (Monday – Friday, 7:45 am – 4:15 pm, excluding holidays) or by email at [email protected].

Thank you for your patience and understanding during these times.  As the situation regarding COVID-19 evolves, we will continue to keep you informed of any changes to our procedures.  Please take care and stay safe.


Click here for Hawaii Ambient Air Quality Data



The Clean Air Branch is issuing a mandatory No Burn Period for the following areas:


  • The “NO BURN” is currently in effect from 9:00 a.m., Monday, May 16, 2022 until 12 noon, Wednesday, May 18, 2022.

HAWAII ISLAND – North and South Kona District; North and South Kohala District

  • The “NO BURN” is currently in effect from 9:00 a.m., Monday, May 16, 2022 until 12 noon, Friday, May 20, 2022.

HAWAII ISLAND – Kau District

  • The “NO BURN” is currently in effect on a continuous status.


Agricultural and conditionally allowed open burning is prohibited while a No Burn Period is in effect unless a waiver is provided by the Director.  

Violation of a No Burn Period may result in both civil and administrative penalties of up to $10,000 per day per violation. 


Regional Haze

Mission Statement

At most times and in most places in Hawaii, we enjoy some of the best air quality in the nation. However, we do have air pollution as does any metropolitan area, so the Department of Health (DOH) works diligently to regulate and monitor air pollution sources.

The Clean Air Branch (CAB) is responsible for air pollution control in the state. The primary services of the branch are provided by its three sections: Engineering, Monitoring, and Enforcement. These sections conduct engineering analysis and permitting, perform monitoring and investigations, and enforce the federal and state air pollution control laws and regulations.

Engineering Section

Reviews air applications and issues air permits of potential air pollution stationery sources. Evaluates, through application of dispersion modeling, the potential impact of an air pollution source on ambient air quality. Evaluates the control technology, operations, and fuels consumed to assess the types and potential air emissions from the various sources. Compiles and maintains a statewide air emissions inventory for the air pollution sources.

Monitoring Section

Monitors the activities of the stationary sources for compliance with the applicable rules and permit conditions. Recommends enforcement action where violations have occurred. Conducts annual inspections of major sources and investigates incidents and complaints. In conjunction with the Air Laboratory, establishes and maintains the ambient air monitoring network and conducts special air monitoring studies as necessary. Compiles, assesses, and manages the data retrieved from the monitoring stations producing applicable graphs and reports.

Enforcement Section

Initiates case development of alleged violations, determines the penalty, drafts and issues the notice of violation, and assists and participates in the conference, hearing, and legal process. Assesses, proposes, or comments on corrective measures, settlement agreements, penalties, and administrative or court actions. Conducts “smoke reading” training classes to provide continuing certification of inspectors in the technique of evaluating visible smoke.

Regulatory Basis

The following are the federal and state laws and regulations that are associated with the control of air pollution and which authorize and direct the Clean Air Branch:

Federal Act

Federal Clean Air Act and Amendments

Federal Regulations

  • Title 40, Code of Federal Regulations, Part 50, National Primary and Secondary Ambient Air Quality Standards
  • Title 40, Code of Federal Regulations, Part 51, Requirements for Preparation, Adoption, and Submittal of Implementation Plans
  • Title 40, Code of Federal Regulations, Part 52.21, Prevention of Significant Deterioration of Air Quality
  • Title 40, Code of Federal Regulations, Part 53, Ambient Air Monitoring Reference and Equivalent Methods
  • Title 40, Code of Federal Regulations, Part 58, Ambient Air Quality Surveillance
  • Title 40, Code of Federal Regulations, Part 60, Standards of Performance for New Stationary Sources
  • Title 40, Code of Federal Regulations, Part 61, National Emission Standards for Hazardous Air Pollutants
  • Title 40, Code of Federal Regulations, Part 63, National Emission Standards for Hazardous Air Pollutants for Source Categories
  • Title 40, Code of Federal Regulations, Part 70, State Operating Permit Programs

State Law (Hawaii Revised Statutes – HRS)

HRS, Chapter 342B, Air Pollution Control

Administrative Rules (Hawaii Administrative Rules – HAR)

HAR, Title 11, Chapter 59, Ambient Air Quality Standards

HAR, Title 11, Chapter 60.1, Air Pollution Control (June 30, 2014)

Contact Information

If you have any questions, please contact the Clean Air Branch using the following:

State of Hawaii
Clean Air Branch
2827 Waimano Home Road, #130
Pearl City, HI  96782

e-mail:   [email protected]
Phone:   (808) 586-4200 between 7:45 a.m. and 4:15 p.m.
Fax:        (808) 586-4359

Toll-free from the neighbor islands. Call the numbers below, then enter “64200#”:

    • Hawaii:   (808) 974-4000
    • Maui:      (808) 984-2400
    • Kauai:     (808) 274-3141
    • Molokai & Lanai:   (800) 468-4644

Air Issues Handled by Other Agencies

In addition, the Clean Air Branch frequently receives questions about a number of topics that are related to air pollution but are actually the responsibility of other programs. The following is a list of programs which deal with these subjects:

Indoor & Radiological Health Branch, DOH, (808) 586-4700: indoor air quality; asbestos; radiation.

Sanitation Branch, DOH, (808) 586-8000: any restaurant-related problem (e.g., cooking smoke, odors, imu).

Office of Hazard Evaluation & Emergency Response, DOH, (808) 586-4250: health effects; emergency response.

Health Promotions & Education Branch, DOH, (808) 586-4613: tobacco smoke.

Pesticides Branch, Dept. of Agriculture, (808) 973-9401: pesticide & herbicide spraying.