Our more than 70 active chapters stretch from Anchorage, Alaska to San Juan, Puerto, Rico and are united in their committment to the promotion and pursuit of excellence in public health. Due to our diverse network, each chapter conducts Delta Omega-sanctioned activities and oversees the induction of their new members. The National Office has maintained a Key Resources page for to provide chapters with best-practives, insight, and information to help them manage their membership. The chapters must adhere to the society's constitution and by-laws, as well as the governance manual.

While the Delta Omega National Office acts as a supporting arm for the society, the decision-making and governance is handled by the Executive Committee of Delta Omega and the National Council. The Executive Committee has four elected officers: President, President-elect, Immediate-Past President, and member-at-large, which each serve two year terms in their respective positions. The Executive Committee is responsible for selecting winners of the society-sponored competitions, reporting on financial and committee activities, and helping chapters with any questions or concerns they may have.

The National Council, which is composed of each chapter's elected officers and representatives, meets to discuss and review the year's new and old business at our Annual Meeting. During the time, the council votes on matters such as suggested changes to the by-laws, proposals for new initiatives, and other issues that would impact the society. If an important vote is needed prior to the next annual meeting, then the Executive Committee may request the National Council vote electronically via email.