Subpart B - HEADQUARTERS
- Section 1.21 - General
- Section 1.23 - Office of the Administrator
- Section 1.25 - Staff offices
- Section 1.27 - Offices of the Associate Administrators
- Section 1.29 - Office of Inspector General
- Section 1.31 - Office of General Counsel
- Section 1.33 - Office of Administration and Resources Management
- Section 1.35 - Office of Enforcement and Compliance Monitoring
- Section 1.37 - Office of External Affairs
- Section 1.39 - Office of Policy, Planning and Evaluation
- Section 1.41 - Office of Air and Radiation
- Section 1.43 - Office of Chemical Safety and Pollution Prevention
- Section 1.45 - Office of Research and Development
- Section 1.47 - Office of Land and Emergency Management
- Section 1.49 - Office of Water