Section 301 (c) of the federal law stipulates membership of each LEPC shall include, at a minimum, a representative from each of the following groups or organizations:
- Elected Officials: State or Local: Grant County Commissioner, Grant County Sheriff, City of Ulysses Administrator
- Law Enforcement: Ulysses Police Department, Grant County Sheriff
- Firefighting: Grant County Fire Department
- Emergency Management: Grant County Emergency Management
- Health: Grant County Public Health Dept, Regional Public Health, Area Mental Health Center
- Hospital: Bob Wilson Memorial Grant County Hospital
- Broadcast/Print Media: Ulysses News, KULY Radio, Grant County Webmaster, Pioneer Communication
- Transportation: USD 214, Grant County Road and Bridge, Ulysses City Shop-Sanitation, Sewer, Street, Water Recycling
- Emergency Medical Service: Grant County Emergency Medical Services
- Local Environmental Group: Grant County Extension Office, City/County Building Inspections
- Community/Service/Civic Group: American Red Cross
- Facility Owners/Operators regulated by SARA Title III: Pioneer Natural Resources, Linn Energy, Oxy USA, Grant County Feeders, Energy Transfer-Regency, Columbia Chemical-Birla Chemical, Pioneer Electric Cooperative Inc.
- Information Coordinator: Grant County Emergency Management
Members of the LEPC represent a large number of government and private organizations, industries, and occupations in order to provide the expertise to advise on plan development and to offer a "total package" of planning and outreach capability. By law, the LEPC membership must represent a cross section of the jurisdiction in which it resides.
The LEPC members shall be nominated by County Commissioners and will be approved by CEPR.