In a rule published July 2, 2002, EPA found the Arizona Department of Environmental Quality’s "Plan for Attainment of the 24-Hour PM10 Standard – Maricopa County PM10 Nonattainment Area" (May 1997), inadequate to achieve attainment of the 24-hour National Ambient Air Quality Standards for particulate matter 10 microns or fewer in aerodynamic diameter (PM10) at the Salt River monitoring site. The 1997 ADEQ SIP revision included attainment and Reasonable Further Progress demonstrations for the 24-hour NAAQS at the Salt River air quality monitoring site of the Maricopa County PM10 Serious Nonattainment Area, as well as at three other monitoring sites in the Phoenix area, - the Maryvale, Gilbert, and West Chandler sites. On August 4, 1997, EPA approved ADEQ’s attainment and RFP demonstrations for the Salt River monitoring area, which showed that the 24-hour PM10 NAAQS would reach attainment in the area by May 1998. Due to continuing violations of the 24-hour PM10 NAAQS at the Salt River air quality monitoring site since May 1998, EPA subsequently required Arizona to submit a revision to correct SIP inadequacies. This document consists of Arizona’s revisions to the state implementation plan for the Maricopa County PM10 Serious Nonattainment Area as described by EPA in its Federal Register notice of disapproval.

Education decisions are among the most important choices people ever make. So we were surprised and disappointed to see an article so loosely reasoned and reckless in its conclusions as “Five Reasons to Skip College” published in Blank Slate at Forbes.com on April 18, 2006. The article never provides a numerical assessment of the costs and benefits of going to college, uses statistics inappropriately and in a way that biases the conclusions against college, contains conceptual errors on how to evaluate the return on a college education, and greatly exaggerates the only substantive criticism of typical evaluations of the financial worth of a college degree.

Discusses the results of the 2010 decennial census for Arizona, with comparisons to the nation and other states, and for Arizona counties and places. Changes between 2000 and 2010 are included. In addition to the total population, the population living in households, and the population living in group quarters, the following topics are discussed: household type, race and ethnicity, age, housing units and vacancies, and homeownership. The data are available in two accompanying Excel files.

Volume I: Facts
Analyses of Arizona state government finance, using data of the Arizona Joint Legislative Budget Committee, and of the combined finances of all state and local governments within Arizona, using data of the U.S. Census Bureau. A historical perspective is provided for both datasets. For combined state and local government finance, comparisons are made to other states and to the national average. In addition, other measures of the tax burden by state are examined.

Volume II: Concepts and Issues
Addresses the conceptual and empirical relationships between taxes, government revenue, and economic growth. Also discusses current issues specific to Arizona state government finance. This is a revised version of the report "Tax Reductions, the Economy, and the Deficit in the Arizona State Government General Fund," incorporating new and updated material.

Volume III: Options for Managing the Arizona State General Fund
Presents options and offers recommendations for managing the Arizona state government general fund. The near-term budget deficit is addressed as well as ways to prevent budget deficits from recurring every time economic growth slows.

The Clean Air Act states that an area can be redesignated to attainment if specific conditions are met. This document demonstrates that all CAA requirements for attainment have been met, summarizes the progress of the area in attaining the PM10 standard, demonstrates that the Bullhead City area qualifies for EPA’s Clean Data Policy and Limited Maintenance Plan option, and includes a maintenance plan to assure continued attainment for ten years after the redesignation. This document includes a formal request to the U.S. Environmental Protection Agency to redesignate the Bullhead City, Arizona PM10 nonattainment area to attainment for the health-based 24-hour average and annual average PM10 National Ambient Air Quality Standard.

In addition, this document includes a formal request to revise the nonattainment area boundary, as currently defined in 40 CFR 81.303, to exclude three townships (108 square miles) in the east and south of the nonattainment area. The rationale for eliminating the three townships is that the land contains undisturbed desert terrain. The majority of the three townships is federal land managed by the Bureau of Land Management and state land managed by the Arizona State Land Department. Analyses included in this document show that ambient air quality measurements have remained below the NAAQS for PM10, and both the 24-hour average design value and annual average PM10 design value are below EPA’s LMP allowable limits. This document also demonstrates that the emission reduction control measures responsible for the air quality improvement are both permanent and enforceable.

This document consists of the attainment demonstration, maintenance plan, and redesignation to attainment request for the Douglas Sulfur Dioxide (SO2) Nonattainment Area. The purpose of this document is to demonstrate how the State of Arizona has met the National Ambient Air Quality Standards for SO2 and intends to maintain compliance with the NAAQS in the Douglas area. Air quality standards are divided into two types: primary standards based on health effects and secondary standards based on environmental effects such as damage to property, plants, visibility, etc. Both standards are established by EPA for criteria air pollutants such as sulfur dioxide.

This document includes an attainment demonstration and formal request to the United States Environmental Protection Agency to redesignate the Hayden, Arizona Sulfur Dioxide (SO2) Nonattainment Area to attainment for the health-based 24-hour average and annual average SO2 National Ambient Air Quality Standards. It summarizes the progress of the area in attaining the SO2 standards, demonstrates that all Clean Air Act (CAA) requirements for attainment have been adopted, and includes a maintenance plan to assure continued attainment after redesignation. This document also demonstrates that the emission reduction control measures responsible for the air quality improvement are both permanent and enforceable.

This document is an attainment demonstration, maintenance plan, and formal request to the United States Environmental Agency to redesignate the Miami, Arizona area, a nonattainnlent area for sulfur dioxide (SO,), to attainment for the health-based 24-hour average and annual average SO, National Ambient Air Quality Standards. It summarizes the progress ofthe area in attaining the SO, standards, demonstrates that all Clean Air Act requirements for attainment have been adopted, and includes a maintenance plan to assure continued attainment after redesignation. This document also demonstrates that the emission reduction control measures responsible for the air quality improvement are both permanent and enforceable.