Who Needs to Use DD Form 218-1?
This form is primarily for:
- DoD military and civilian personnel in the Washington, D.C. area
- Office coordinators managing telephone directories
- Units requiring updates to classified organizational listings in the Pentagon telephone directory
- Personnel handling secure communications directories
It targets U.S.-based DoD employees and service members who maintain internal classified contact information.
Purpose of the Telephone Directory Classified Section Change Order
The main purpose of DD Form 218-1 is to keep the classified sections of the DoD Telephone Directory current. Accurate directories are critical for:
- Secure and efficient internal communications
- Operational readiness within the Pentagon and supporting agencies
- Proper organizational hierarchy representation
- Compliance with DoD information management policies
How to Fill Out DD Form 218-1: Step-by-Step Instructions?
Follow these official instructions from the form:
- Submit two copies through your office coordinator.
- Use no more than five indentions for organizational listings.
- Break down listings alphabetically.
- Use Action codes:
- A – Add a new line
- C – Change in present listing (underscore changes)
- D – Delete a line
- For complete organizational changes, delete the old entry and add the new one.
- Include date (YYYYMMDD), office, official making report, and telephone number.
View Full Instructions and Examples on the Official PDF
Key Fields on DD Form 218-1
| Field | Description |
|---|---|
| THRU | Office coordinator |
| FROM / TO | Defense Telephone Service – Washington, Room 1A263, The Pentagon |
| DATE | YYYYMMDD format |
| Office, Official, Telephone No. | Contact details of the person submitting |
| ACTION | A (Add), C (Change), D (Delete) |
Download Official DD Form 218-1
Always use the most current version from the official source:
Download DD Form 218-1 PDF (ESD.WHS.MIL)
This is the authoritative fillable form from the Executive Services Directorate.
Related DoD Forms and Resources
- DD Form 218-1 Information Page
- All DoD Forms
- DD Form 218 (Alphabetical Section Change Order)
Common Questions About DD Form 218-1
Is DD Form 218-1 still active in 2026?
Yes. The form (edition FEB 66) remains listed on official DoD sites and is available for use.
Where to submit the completed form?
Submit through your office coordinator to the Defense Telephone Service – Washington.
Best Practices for DoD Telephone Directory Updates
Maintaining accurate classified directories supports mission effectiveness and security protocols. Submit changes promptly when personnel, organizational titles, or room assignments change. Always verify information against current security classification guidelines.