The Maricopa County Voluntary Vehicle Repair and Retrofit Program has been suspended due to current economic circumstances that have resulted in a loss of funding for the Program. While the Program is unable to provide financial assistance for vehicle emission repairs, the Air Quality Department recommends that the necessary repair work be completed by ASE (Automotive Service Excellence) certified professionals at an Arizona Green Business repair facility. From its introduction in January 1999 through June 2009, the Voluntary Vehicle Repair and Retrofit Program had been funded by the State of Arizona. From July 2009 through November 2010, the program was funded by an Energy Efficiency and Conservation Block Grant from the U.S. Department of Energy. The Program provided monetary assistance to qualifying owners of older, high-emitting vehicles that had failed a required emissions test. Over the years, the program helped over 11,700 vehicles meet Arizona emissions standards, resulting in the reduction of over 2,100 tons of pollution.

During a fiscal year, employment sites are processed by the Trip Reduction Program. The TRP produces a detailed statistical summary report for each employment and student site. In addition, the TRP Task Force, along with the TRP staff, reviewed and approve Trip Reduction plans. The report tracks and analyzes the commuting habits of employees and students in Maricopa County.

These regulations constitute the legal basis for control of air pollution sources in Maricopa County, Arizona. They are adopted to implement the policy set forth in Title 49 of the Arizona Revised Statutes and to fulfill the State's responsibilities under the Federal Clean Air Act and its amendments to provide a legally enforceable State Implementation Plan for the attainment and maintenance of the National Ambient Air Quality Standards. This printing of the regulations incorporates changes adopted by the Maricopa County Board of Supervisors through September 2013.

These regulations constitute the legal basis for control of air pollution sources in Maricopa County, Arizona. They are adopted to implement the policy set forth in Title 49 of the Arizona Revised Statutes and to fulfill the State's responsibilities under the Federal Clean Air Act and its amendments to provide a legally enforceable State Implementation Plan for the attainment and maintenance of the National Ambient Air Quality Standards. This printing of the regulations incorporates changes adopted by the Maricopa County Board of Supervisors through January 2011.

The purpose of this handbook is to provide a practical guide offering a comprehensive overview of the
department’s policies and interpretations of Rule 310. The intent is that this guide will be useful and used. The handbook is organized to respond to topical questions and it is structured to provide answers to the most commonly encountered compliance challenges.

The Arizona Department of Health Services completed this health consultation at the request of the Arizona Department of Environmental Quality. This consult evaluates whether soil vapors from volatile organic compounds in the subsurface near the Silver Creek Subdivision in Tucson, Arizona are present at levels that may cause adverse health effects.

The Rodeo-Chediski Fire Complex began as a small blaze in a remote region of east-central Arizona and within days erupted into the largest wildfire in Arizona history. Fortunately, no lives were lost. However, from June 18, 2002 to the time of its containment on July 7, 2002, the Rodeo-Chediski fire destroyed over 490 structures and 467,000 acres of ponderosa pine and pinyon-juniper woodland—an estimated 500 million to 1.3 billion board feet of timber. Jurisdictions involved included the Fort Apache Indian Reservation, the Apache-Sitgreaves National Forest, the Tonto National Forest, and private lands adjacent to Highway 260, from the Town of Forest Lakes east to the City of Show Low. Virtually all of the acres burned were in Navajo County, with some damage in the contiguous counties of Coconino, Apache, and Gila Counties. This health assessment describes the fire events and summarizes the resulting public health impacts from the fire.

Previous studies at Lake Havasu and Lake Powell, combined with other national data indicate that carbon monoxide poisoning from recreational watercraft can create a significant health hazard. The current study was designed not to repeat the 2003 study. Instead, it was designed to explore the potential health effects of carbon monoxide under the conditions of Humbug Cove. Humbug Cove is known for congregating idling boats, higher frequency of alcohol consumption, and being a location that was secluded and sheltered from breezes or wind.