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.

The Arizona Arrestee Reporting Information Network is a drug abuse monitoring system that provides on-going descriptive information about drug use, crime, victimization, and other characteristics of interest among individuals arrested in Maricopa County, Arizona. In five facilities throughout the county, professionally trained interviewers conduct voluntary and confidential interviews with recently booked arrestees. Questions focus on a range of topics including demographics, patterns of drug use (lifetime and recent), criminal activity, gang affiliation, victimization, mental health, citizenship, and treatment experiences. Each interviewee also provides a urine specimen that is tested for the presence of alcohol and/or drugs.

One in a series of long-range transportation planning studies being conducted by the Maricopa County Department of Transportation to assess the ultimate corridor footprint requirements to enable consistent implementation across multiple jurisdictions. The study area for this project includes Peoria Avenue from the future Jackrabbit Trail Parkway alignment to Dysart Road (Peoria Avenue Corridor). The study area generally encompasses a two-mile wide corridor centered on the existing Peoria Avenue.

One in a series of long-range transportation planning studies being conducted by the Maricopa County Department of Transportation to evaluate future parkways identified in the Maricopa Association of Governments framework studies. The Yuma Parkway study area is approximately 13 miles long and two miles wide, and is generally centered on the Buckeye Road/Yuma Road section line, from one-half mile west of Salome Highway to one-half mile east of Palo Verde Road.

The purpose of the Hidden Waters Parkway study is to document conditions along the parkway corridor, identify potential fatal flaws and develop an alignment alternative that meets the future traffic needs identified in the Hassayampa Framework Study. The recommended alternative will establish a roadway footprint that may be used as a guide for local agencies and development within the corridor.