Open Access. Powered by Scholars. Published by Universities.®

Public Policy

Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 1 - 30 of 176

Full-Text Articles in Infrastructure

Cyberspace Collaborative Awareness: A Model For Unity Of Effort In Homeland Defense, Mike Knapp, Sean Atkins, Matthew Mclaughlin Sep 2026

Cyberspace Collaborative Awareness: A Model For Unity Of Effort In Homeland Defense, Mike Knapp, Sean Atkins, Matthew Mclaughlin

Joint Force Quarterly

The increasing frequency and severity of cyberattacks against U.S. critical infrastructure continue to confound homeland defense efforts. Defending against state cyber campaigns that threaten the nation’s most critical systems requires a new awareness model that can enable unity of effort across public and private actors. Examining homeland defense awareness in other domains reveals principles and approaches that can inform the development of a collaborative awareness model in cyberspace. This new framework acknowledges the interconnectedness of government and commercial networks and the independent goals of each player in the domain. Doing so provides a viable path to achieving shared domain awareness …


Mountain Development In Nepal: Settlements, Infrastructure, And Economic Transformation, Keshav Bhattarai, Ambika P. Adhikari Aug 2026

Mountain Development In Nepal: Settlements, Infrastructure, And Economic Transformation, Keshav Bhattarai, Ambika P. Adhikari

Himalayan Research Papers Archive

As Nepal urbanizes, expands infrastructure, strengthens local governments, and explores deeper connectivity with India and China, climate change is increasing floods, landslides, heat, and water insecurity. Rapid internal migration, rising disaster risks, youth outmigration, and dependence on remittances are also revealing the limits of conventional urban development, especially in the mountainous region. The central challenge for Nepal is no longer just to accommodate growing towns and cities, but to build settlements that are safe, productive, environmentally resilient, and capable of sustaining long-term prosperity.

This paper argues that Nepal's urban future must be guided by a new development paradigm centered on …


Lessons From Tanzania’S Ujamaa For Smart Settlements In Nepal: Social Justice And Economic Development, Keshav Bhattarai, Ambika P. Adhikari Aug 2026

Lessons From Tanzania’S Ujamaa For Smart Settlements In Nepal: Social Justice And Economic Development, Keshav Bhattarai, Ambika P. Adhikari

Himalayan Research Papers Archive

Nepal’s constitutional commitment to a “socialism-oriented” state places social justice, equitable access to resources and housing, and protection of marginalized populations at the center of national development discourse. However, persistent landlessness, informal settlements, unemployment, youth outmigration, and unequal access to infrastructure reveal a significant gap between constitutional aspirations and socioeconomic realities.

This article examines lessons Nepal can draw from Tanzania’s experience with Ujamaa, the African socialist development model initiated by President Nyerere in 1967. Using comparative policy analysis, published research, official documents, and exploratory field observations from selected Tanzanian locations, including the capital and villages in the Iringa Region, the …


Scheduled Coal Plant Retirements In The Mountain West, 2022-2031, Kerima Awol, Sophia Booth, Ty Tan, Caitlin J. Saladino, William E. Brown Jr. Jul 2026

Scheduled Coal Plant Retirements In The Mountain West, 2022-2031, Kerima Awol, Sophia Booth, Ty Tan, Caitlin J. Saladino, William E. Brown Jr.

Environment

This fact sheet presents data on publicly announced coal-fired power plant retirements in five Mountain West states: Arizona, Colorado, Nevada, New Mexico, and Utah, between 2022 and 2031. The Visual Capitalist’s 2021 report, “Road to Decarbonization: U.S. Coal Plant Closures,” includes information on the location, retirement year, and electricity generation capacity of coal-fired power plants scheduled for retirement across the United States.


Shaping Egypt’S Transition To Sustainable Electric Transport: Current Policies And Future Directions, Noha A. Ragab Jun 2026

Shaping Egypt’S Transition To Sustainable Electric Transport: Current Policies And Future Directions, Noha A. Ragab

Theses and Dissertations

Egypt has enacted policies to promote the adoption of electric vehicles (EVs) in order to reduce their overall carbon footprint. However, the pace of transition remains limited, so the research aims to answer the following question: “How do current policies shape Egypt’s transition towards sustainable electric transport, and what additional measures can support this transition?" The study employs a qualitative analysis methodology, based on diffusion of innovation theory and conceptual framework, to analyze current policies in Egypt and identify challenges and gaps in their implementation. It also analyzes responses from 23 interviews with experts in the field, manufacturers, dealers, EV …


Commute Times And Remote Workers In Mountain West Cities, 2019-2023, Maisoon Faris, Mia Tschan, Caitlin J. Saladino, William E. Brown Jr. Jun 2026

Commute Times And Remote Workers In Mountain West Cities, 2019-2023, Maisoon Faris, Mia Tschan, Caitlin J. Saladino, William E. Brown Jr.

Transportation & Infrastructure

This fact sheet presents 2019 to 2023 data on city-wide travel times, the number of remote workers, and the amount of time lost and saved by commuters across seven Mountain West cities: Mesa, AZ; Phoenix, AZ; Tucson, AZ; Colorado Springs, CO; Denver, CO; Las Vegas, NV; and Albuquerque, NM. The data are derived from the 2025 Yardi Kube report, “Back on the Road: U.S. Commutes Increase Amid a Hybrid Work Era,”  which includes commute time and remote worker data for the 50 largest cities across the United States. The year 2022 is used as a base comparison to show changes …


Transportation Deserts And Structural Mobility Access In New York City, John Cruz May 2026

Transportation Deserts And Structural Mobility Access In New York City, John Cruz

Student Theses

This study examines structural mobility access across New York City census tracts by constructing a tract-level Mobility Access Index (MAI) that integrates employment accessibility, hospital accessibility, and first-mile subway walking burden using MTA GTFS transit data, NYC Taxi and Limousine Commission trip records, and US Census American Community Survey demographic estimates. Three OLS regression models, supplemented by Lasso, Elastic Net, and Random Forest specifications, test whether structural access gaps are associated with short-distance connector trip intensity and per-worker connector cost burden. Results show that MAI varies substantially across tracts, with high access concentrated in Manhattan and along major subway corridors. …


Silicon Rivalry: Understanding The U.S.-China Ai Competition In Southeast Asia, Daniel Christopher Kent May 2026

Silicon Rivalry: Understanding The U.S.-China Ai Competition In Southeast Asia, Daniel Christopher Kent

Master in Public Policy Theses

In the rising global strategic competition between China and the United States, artificial intelligence (AI) has taken on a special significance given its potentially transformative impact upon economics and security. Yet while the dialogue around the “AI race” is typically centered on foundational model capability enhancement, application in security contexts, and chip design and manufacturing, there is much less attention paid to its impact on geopolitics. In particular, AI diplomacy—the work of a state to spread its model of AI governance, evangelize its AI companies, and develop critical AI interdependencies and linkages around the world—is far less studied. Nowhere is …


Empirical Results From The Eliminations Of Municipal Minimum Parking Requirements, David A. Griffith May 2026

Empirical Results From The Eliminations Of Municipal Minimum Parking Requirements, David A. Griffith

Honors Theses

Minimum Parking Requirements (MPR) are municipal zoning ordinances mandating a set number of off-street parking spaces for new developments. Since the 1950s, MPR has been the near-universal way American municipalities supply parking, though growing criticisms since the late 1990s have targeted the policy for distorting development patterns, imposing high costs, and subsidizing personal vehicle use. Beginning in the early 2010s and increasingly in the early 2020s, cities and counties across the United States have moved to reform or eliminate MPR. This paper is the first empirical study of the economic effects of these removals. Using a two-way fixed-effects difference-in-differences OLS …


Impact Of Social Worker Bias On African American Fathers With Open Children Family Services Cases, Jenna Espinosa, Cecil Perry, Jasmine Alvarado, Jennifer Garcia, Lacrietia Grate-Dixson May 2026

Impact Of Social Worker Bias On African American Fathers With Open Children Family Services Cases, Jenna Espinosa, Cecil Perry, Jasmine Alvarado, Jennifer Garcia, Lacrietia Grate-Dixson

Electronic Theses, Projects, and Dissertations

Systemic barriers and biases within institutions and policies affect how African American fathers engage with Children and Family Services (CFS). According to research, social worker bias, whether overt or covert, can influence case decision-making, affecting fathers' access to resources and overall involvement in their children’s lives. This study aims to quantitatively assess the impact of social worker bias on African American fathers' engagement by evaluating service completion rates at the .21e hearing. A quantitative research design will be utilized by implementing a validated survey to measure social worker bias and case file reviews to assess service completion. Statistical analyses, including …


People Who Moved In The Mountain West, 2024, Anthony Arroyo, Sydney Mitchell, Maisoon Faris, Olivia K. Cheche, Caitlin J. Saladino, William E. Brown Jr. Apr 2026

People Who Moved In The Mountain West, 2024, Anthony Arroyo, Sydney Mitchell, Maisoon Faris, Olivia K. Cheche, Caitlin J. Saladino, William E. Brown Jr.

Cities & Metros

This fact sheet presents 2024 data on state and city-level mobility rates across the Mountain West states of Arizona, Colorado, Nevada, New Mexico, and Utah. Point2Homes’ “Mobility Rates Reach Record Low: In 2024, Americans Moved Less Than Ever” report provides data on mobility rates within states, as well as the rate of new residents moving into states and cities across the U.S. This fact sheet highlights mobility rates within Mountain West states, the rate of new residents moving into Mountain West states, and the rate of new residents moving into 63 Mountain West cities. This fact sheet also includes national …


U.S. Arctic Sea Lines Of Communication (Sloc): The Imperative For A Maritime Complex And Corridor In The Bering Region, Samuel A. Krakower, Troy J. Bouffard Mar 2026

U.S. Arctic Sea Lines Of Communication (Sloc): The Imperative For A Maritime Complex And Corridor In The Bering Region, Samuel A. Krakower, Troy J. Bouffard

Joint Force Quarterly

This paper examines the current American capacity to defend its newfound Sea Lines of Communication in the North Pacific and Arctic Oceans. The history, and importance, of Sea Lines of Communication trace back to great naval strategists such as Rear Admiral Alfred Thayer Mahan and Sir Julian Corbett, and consistent protection of these maritime corridors in times of war and peace led to the success of the United States. As the Arctic Region emerges as a new theater of geopolitical importance, the United States finds itself significantly disadvantaged or "strategically handicapped” in terms of presence, capability, and proximity to defend …


Data Centers In Mountain West Markets, 2026, Cason Noll, Krish Sharma, Maisoon Faris, Olivia K. Cheche, Caitlin J. Saladino, William E. Brown Jr. Mar 2026

Data Centers In Mountain West Markets, 2026, Cason Noll, Krish Sharma, Maisoon Faris, Olivia K. Cheche, Caitlin J. Saladino, William E. Brown Jr.

Transportation & Infrastructure

This fact sheet reports on the distribution and geographic concentration of data centers across the Mountain West states of Arizona, Colorado, Nevada, New Mexico and Utah as of March 6th, 2026. Using data from DataCenterMap, this fact sheet examines the number of data centers in each Mountain West state and further analyzes market-level  distribution, defined as cities within each state where data centers are located. The data are used to compare state totals and to rank Mountain West markets from highest to lowest based on the number of data centers operating in that area.


A Policy Reversal As Structural Break: A Lesson From China’S Land Lease Financing For Infrastructure, Yilin Hou, Lin Li, Lei Shao Jan 2026

A Policy Reversal As Structural Break: A Lesson From China’S Land Lease Financing For Infrastructure, Yilin Hou, Lin Li, Lei Shao

Center for Policy Research

Land-based revenues as a fiscal instrument to finance infrastructure tie public investment to real estate markets, where demand fluctuations cause fiscal consequences. This paper takes policy reversals as structural breaks and examines their impacts on infrastructure investment. We dissect China’s 2016 policy reversal that disallowed developers to finance land purchase with debt, causing sharp declines in local government land revenues, slashing their fiscal base for infrastructure investment. Using prefecture-level panel data and continuous difference-in-differences identification, we estimate the reversal reduced land-lease revenues by 55%. Two-stage least squares estimates suggest a 10% land-revenue decline translates into 6.6% investment reduction. Decomposing the …


Localized Air Pollution Impacts From Data Centers In Northern Virginia, Damian Pitt, Ivan Suen, Ellie Plisko Jan 2026

Localized Air Pollution Impacts From Data Centers In Northern Virginia, Damian Pitt, Ivan Suen, Ellie Plisko

Institute for Sustainable Energy and Environment Publications and Presentations

This report examins the extent of air pollution emissions resulting from the use of backup generators at data centers in Northern Virginia, including both actual current emissions and potential future emissions, and how those emissions totals compare to other sources of air pollution in the Northern Virginia region. It also examines how exposure to data center emissions correlates with demographic characteristics such as race, income, and education.

We while the air pollution emissions from individual data centers is minor, the collective impact from the 100+ such facilities in the Northern Virginia region is significant. Notably, the cumulative emissions exposure in …


Analysis Of Policies And Incentives For The Successful Implementation Of Hydrogen-Fueled Medium-Duty And Heavy-Duty Vehicles In Humboldt County, California, Alka Verma Jan 2026

Analysis Of Policies And Incentives For The Successful Implementation Of Hydrogen-Fueled Medium-Duty And Heavy-Duty Vehicles In Humboldt County, California, Alka Verma

Cal Poly Humboldt theses and projects

The 21st century has seen a significant rise in global greenhouse gas (GHG) emissions, with the transportation sector contributing 23% of these emissions. Medium-duty and heavy-duty vehicles (MD/HD) are particularly impactful, accounting for over a quarter of transport-related emissions. In Humboldt County, California, transportation represents 53% of total emissions, with MD/HD vehicles being a major contributor. As light-duty vehicles shift to zero-emission alternatives, the MD/HD sector faces unique challenges. Hydrogen fuel cell vehicles offer a promising solution, providing longer range, higher energy density, and quicker refueling compared to battery electric vehicles (BEVs). These features make hydrogen an attractive option for …


Shrines On Asphalt Shoulders: Documenting Roadside Memorials In Western U.S. Roadscapes, Isabella R. Sullivan Jan 2026

Shrines On Asphalt Shoulders: Documenting Roadside Memorials In Western U.S. Roadscapes, Isabella R. Sullivan

Scripps Senior Theses

This thesis analyses the practice of documenting and uploading roadside memorials in the Western United States as a socially transformative process facilitated between two distinct kinds of noticing. Drawing on (auto)ethnographies of roadside memorial sites in Colorado and California, interviews with photographers and cartographers working primarily in the American Southwest, and Google Street View media, this research examines how recognition of the social negotiations involving memory and mortality that are already present in the physical shrines evolves when documenters capture and transpose them online. First, these documenters have developed the “eyes to see” roadside memorials for various significant reasons in …


Florida Local Public Administrator Perspectives On Decentralized Wastewater Treatment, Jude Hagan Jan 2026

Florida Local Public Administrator Perspectives On Decentralized Wastewater Treatment, Jude Hagan

Honors Undergraduate Theses

Decentralized wastewater treatment (DWT) systems, such as onsite greywater recycling and septic systems, have been demonstrated to be a potentially more sustainable, cost-effective, and disaster-resilient alternative to traditional centralized systems by treating wastewater at or near the source. However, many barriers exist that have prevented the widespread implementation of DWT, such as public opposition, lack of resources, government regulations, public health concerns, and capital costs. In this study, local emergency managers, urban planners, and utility/wastewater managers in Florida were surveyed to determine their perceptions and levels of knowledge on DWT. The results of this study were inconclusive due to a …


Investigating The Relationship Between Noun Classes And Plant Folk Taxonomy In Chasu Language Of Kilimanjaro Region In Tanzania, Peter Rabson Mziray Nov 2025

Investigating The Relationship Between Noun Classes And Plant Folk Taxonomy In Chasu Language Of Kilimanjaro Region In Tanzania, Peter Rabson Mziray

Journal of Humanities and Social Sciences

The current study investigates the relationship between noun classes and plant folk taxonomy in Chasu (G 22). The study focuses on two objectives: the first objective is to describe the plant folk taxonomy in Chasu and the second objective is to determine the relationship between noun classes and plant folk taxonomy in Chasu. Data were collected from rural villages in Same and Mwanga districts by using free listing, field interviews (jungle-walk-and-identify), and written texts containing Chasu plant names. The findings reveal that Chasu folk taxonomy reflects different ethnobotanical categories; including a unique beginner which is mmea/mimea ‘plant(s)’, and three life …


Understanding Film Tax Credits In Nevada And Nationally, Michael J. Brown, David F. Damore, William E. Brown Jr. Oct 2025

Understanding Film Tax Credits In Nevada And Nationally, Michael J. Brown, David F. Damore, William E. Brown Jr.

Policy Briefs and Reports

This policy primer provides an overview of Nevada’s transferable tax credit program for film and other productions and reviews articles, reports, audits, and studies of film tax credits as a tool for economic development in the United States. This review considers a significant body of work analyzing the use of film tax credits in support of economic development. Studies and state audits often show that because film tax credits do not create the number and quality of full-time jobs necessary to merit their costs and do little to stimulate other related industries, they are a poor financial choice for state …


Urban Heat Islands In Mountain West Cities, 2024, Mia Tschan, Krish Sharma, Olivia K. Cheche, William E. Brown Jr. Oct 2025

Urban Heat Islands In Mountain West Cities, 2024, Mia Tschan, Krish Sharma, Olivia K. Cheche, William E. Brown Jr.

Environment

This fact sheet presents data on Urban Heat Islands (UHIs) in six cities across five Mountain West states: Arizona, Colorado, Nevada, New Mexico, and Utah. The data are derived from the 2024 Climate Central report, “Urban Heat Hot Spots in 65 Cities,” which includes data on how UHIs boost temperatures in 65 major cities across the United States. This fact sheet focuses on UHIs in six Mountain West cities: Albuquerque, NM; Denver, CO; Las Vegas, NV; Phoenix, AZ; Salt Lake City, UT; and Tucson, AZ.


Addressing Climate Vulnerability And Policy Gaps Of Heat Waves In Upper Egypt: The Case Study Of Al-A’Qaab Village In Aswan, Eman Abdullah Oct 2025

Addressing Climate Vulnerability And Policy Gaps Of Heat Waves In Upper Egypt: The Case Study Of Al-A’Qaab Village In Aswan, Eman Abdullah

Theses and Dissertations

Heatwaves are currently one of the most dangerous climate hazards globally. Egypt is experiencing an increase in the intensity and frequency of heatwaves, which affects health, economy, infrastructure, and the ecological system. Upper Egypt is one of the most vulnerable regions in Egypt to rising temperatures, particularly in Aswan Governorate. The risks of heat waves are increasing vulnerability among vulnerable groups, such as women and low-income individuals. However, there is a clear gap in protection policies against heat waves, along with a lack of studies examining the effects of heat waves on individuals in Aswan. Accordingly, this thesis aims to …


Federal Funding In The Mountain West, 2021-2024, Isabelle G. Graham, Olivia K. Cheche, Caitlin J. Saladino, William E. Brown Jr. Sep 2025

Federal Funding In The Mountain West, 2021-2024, Isabelle G. Graham, Olivia K. Cheche, Caitlin J. Saladino, William E. Brown Jr.

Elections & Governance

This fact sheet presents data on the number of federal funding awards granted to the five Mountain West states of Arizona, Colorado, Nevada, New Mexico, and Utah between 2021 and 2024. These awards include investments authorized under major federal legislation such as the Inflation Reduction Act (IRA), CHIPS and Science Act, and Bipartisan Infrastructure Law (BIL), among other programs tracked by Invest.gov. The One Big Beautiful Bill Act (OBBBA) will see funding for these programs sunsetted (terminated as the above legislation expires).


Abundance Strategies Should Promote Abundant Jobs In Distressed Places, Timothy J. Bartik Sep 2025

Abundance Strategies Should Promote Abundant Jobs In Distressed Places, Timothy J. Bartik

Upjohn Institute Policy Papers

A prominent recent policy debate is about “abundance policies”: policies to make it easier to build housing or infrastructure, deliver government services more quickly and more efficiently, and expedite the public funding of the most innovative and socially impactful research. In this essay, I argue that abundance advocates often mistakenly ignore or have a negative attitude toward “place-based policies.” These place-based policies would seek to increase employment rates, particularly in good jobs, in two types of distressed places that lack abundant job opportunities: distressed local labor markets and distressed neighborhoods. Both the goals and means of place-based policies fit into …


Strategic Development Plan – San Pedro Dr. Main Street Corridor, Adrian N. Carver Jul 2025

Strategic Development Plan – San Pedro Dr. Main Street Corridor, Adrian N. Carver

Student Publications

The San Pedro MainStreet Strategic Development Plan is a place-based, community-driven roadmap for revitalizing the San Pedro Drive corridor in Albuquerque, New Mexico. The corridor sits at the intersection of historical significance and present-day opportunity—bridging the old and new alignments of Route 66 while serving a diverse, working-class population. Drawing from urban planning theory, spatial analysis, and community input, this plan identifies challenges and assets related to land use, infrastructure, business development, housing, and cultural identity. Special attention is given to past and ongoing patterns of racialized disinvestment and displacement, with strategies proposed to ensure equitable reinvestment and climate resilience. …


New Building Permits In The Mountain West, 2024, Taylor Volk, Mohit Pande, Kristian Thymianos, Caitlin J. Saladino, William E. Brown Jr. Jun 2025

New Building Permits In The Mountain West, 2024, Taylor Volk, Mohit Pande, Kristian Thymianos, Caitlin J. Saladino, William E. Brown Jr.

Housing & Real Estate

This fact sheet examines data on new build permits from January 2023 to January 2024 in the five Mountain West States of Arizona, Colorado, Nevada, New Mexico, and Utah.“New Home Construction Statistics,” published by This Old House, reported percent changes on new builder permits and construction manufacturing costs and statistics across all 50 states.


Pedaling Toward Justice: Exploring The Role Of Community Advocacy In Shaping Bicycle Policy In Oakland., Claire Farrell Lowe May 2025

Pedaling Toward Justice: Exploring The Role Of Community Advocacy In Shaping Bicycle Policy In Oakland., Claire Farrell Lowe

Master's Projects and Capstones

The way people move through a city fundamentally shapes their access to jobs, essential services, and economic and social opportunities. While Oakland’s bicycle infrastructure has improved over the past decade, vehicle-centric planning has historically sidelined cycling, creating mobility inequities. This thesis examines the role of community advocacy in advancing equitable bicycle planning and prioritizing cycling infrastructure as a core element of urban development. This thesis project follows the question: what role do advocacy groups play in addressing the gaps between the Oakland Bicycle Plan and its implementation? Through policy analysis, community engagement, and interviews with key informants from Bike East …


Recent U.S. Government Policy Literature On Critical And Strategic Minerals, Bert Chapman May 2025

Recent U.S. Government Policy Literature On Critical And Strategic Minerals, Bert Chapman

Libraries Faculty and Staff Scholarship and Research

Critical and strategic minerals have become increasingly important in U.S. government civilian and military policymaking in recent years. This is demonstrated by the heavy use of such minerals in many critical civilian and military infrastructures. This work will discuss how this subject has been addressed in laws, presidential documents, and works by government agencies along with congressional oversight committees and support agencies. It will stress how the United States is heavily dependent on strategic minerals from adversarial foreign countries such as China and will examine U.S. efforts to increase its ability to produce such materials in the United States by …


Psychological Treatment Behind The Walls:Insights From The Inside, Rogelio Serrano Apr 2025

Psychological Treatment Behind The Walls:Insights From The Inside, Rogelio Serrano

Psychology Division Scholarship

Repeated eras of mass incarceration, criminalization of marginalized communities, and substance use policies have created a revolving door of justice involved populations. The ever-increasing prison population has repeatedly become the largest contingency of mental health clientele for an overburdened mental health system. Those who work with formerly incarcerated individuals in the community often don’t know the unique set of challenges faced by practitioners within the system. Increased understanding and coordination of care can offer opportunities for sustained recovery and reduced levels of recidivism. In this presentation participants will learn about the unique insights on mental health treatment that can be …


Extremely Low-Income Renter Households In The Mountain West, 2023, Anthony Arroyo, Yiselle Olivas Ruiz, Mia Tschan, Caitlin J. Saladino, William E. Brown Jr. Apr 2025

Extremely Low-Income Renter Households In The Mountain West, 2023, Anthony Arroyo, Yiselle Olivas Ruiz, Mia Tschan, Caitlin J. Saladino, William E. Brown Jr.

Housing & Real Estate

This fact sheet examines data from the 2025 National Low Income Housing Coalition (NLIHC) report, “The Gap: A Shortage of Affordable Rental Homes,” which reported annual rental housing shortages in the United States. This fact sheet focuses on the number of extremely low-income renter households, affordable and available rental homes, and associated cost burdens in the five Mountain West states of Arizona, Colorado, Nevada, New Mexico, and Utah.