Catherine M. Mazzeo serves as Senior Vice President, Chief Legal, Safety & Compliance Officer, and Corporate Secretary at Southwest Gas Holdings Inc., where she oversees all legal affairs, regulatory compliance, safety protocols, and corporate governance for the Fortune 500 energy infrastructure company. With over 25 years of experience in the energy and utilities sector, Mazzeo joined Southwest Gas in 2018 after holding senior legal positions at prominent firms, including as General Counsel for a major natural gas utility and partner at a national law firm specializing in energy regulation. A graduate of Harvard Law School and holder of a bachelor's degree from Georgetown University, she has built a reputation for navigating complex regulatory landscapes and fostering a culture of safety and ethical compliance. Throughout her career, Mazzeo has achieved notable milestones, such as leading the successful defense of multi-million-dollar regulatory challenges before the Federal Energy Regulatory Commission (FERC) and state public utility commissions, resulting in favorable outcomes that protected company assets and customer interests. At Southwest Gas, she spearheaded the implementation of enterprise-wide safety enhancements following industry incidents, reducing reportable safety events by 40% within two years and earning the company recognition from the American Gas Association for excellence in safety management. Her strategic guidance has also been instrumental in mergers and acquisitions, including the integration of key assets that expanded Southwest Gas's footprint across the western United States. As Corporate Secretary, Mazzeo ensures robust board governance and transparency, advising the executive team and board on emerging risks like cybersecurity and environmental regulations. Her leadership emphasizes proactive compliance and innovation, positioning Southwest Gas as a leader in sustainable energy practices while maintaining operational resilience in a dynamic regulatory environment.