OMB control number
Communications Assets Survey and Mapping (CASM) Tool
OMB 1670-0043 ยท DHS/CISA.
OMB 1670-0043
The Emergency Communications Division (ECD) is required to develop and maintain the Nationwide Emergency Communications Plan (NECP). The vision of the NECP is to ensure emergency response personnel can communicate as needed, on demand, and as authorized. To achieve this vision, OEC provides the Communications Assets and Survey Mapping (CASM) tool. The CASM tool is the primary resource nationwide for the emergency communications community to inventory and share asset and training information for the purpose of planning public safety communications operability and interoperability.
The latest form for Communications Assets Survey and Mapping (CASM) Tool expires 2026-11-30 and is listed under ICR 202303-1670-002.
Latest Forms, Documents, and Supporting Material
| Document | Type |
|---|---|
 N/A | Form |
| N/A | Form |
| 2026-16877.pdf | Supplementary Document |
| Forms PTA, CISA - CASM Registration and COMU Training, 20260608, FINAL.pdf | Supplementary Document |
 1670-0043_CASM Tool_2_SSA_20260501 (1).docx | Supporting Statement A |
| 6 USC 572.pdf | Supplementary Document |
| 6 USC 571.pdf | Supplementary Document |
| SORN_DHS-ALL-004.pdf | Supplementary Document |
| SORN_DHS-ALL-002.pdf | Supplementary Document |
| PIA_DHS-ALL-PIA-006.pdf | Supplementary Document |
 CASM Modules |
Form |
| CASM User Registration |
Form |
All Historical Document Collections
| Reference | Filing | Received | Concluded | Action |
|---|---|---|---|---|
| 202610-1670-002 | Extension without change of a currently approved collection | 2026-10-30 | ||
| 202303-1670-002 | Reinstatement without change of a previously approved collection | 2023-06-13 | Approved without change | |
| 201907-1670-001 | Existing collection in use without an OMB Control Number | 2019-08-22 | Approved with change |
OMB Details
CASM User Registration
Federal Enterprise Architecture: Homeland Security - Key Asset and Critical Infrastructure Protection
| Form | Name | Electronic access | Type |
|---|
Review document collections for all forms, instructions, and supporting documents - including paper/printable forms.