eCFR Atlas
API

Federal agency

Department of Energy

DOE

Total regulationⓘ

1,386,959

Every rule this agency manages, in words — rules managed jointly with another agency count in full.

Share of all regulationⓘ

1,374,971

Jointly managed rules are split evenly between their agencies, so shares can be fairly compared across agencies.

Including sub-agencies

2,073,970

Rolled up across 1 sub-agencies.

Areas managed

7

7 measured.

Rules this agency manages

Citation Rule area Level Words Also managed by Official text
2 CFR Chapter IX Chapter IX—Department of Energy chapter 37,794 — eCFR ↗
5 CFR Chapter XXIII Chapter XXIII—Department of Energy chapter 583 — eCFR ↗
10 CFR Chapter II Chapter II—Department of Energy chapter 760,495 — eCFR ↗
10 CFR Chapter III Chapter III—Department of Energy chapter 249,502 — eCFR ↗
10 CFR Chapter X Chapter X—Department of Energy (General Provisions) chapter 158,544 — eCFR ↗
41 CFR Chapter 109 Chapter 109—Department of Energy Property Management Regulations chapter 23,977 — eCFR ↗
48 CFR Chapter 9 Chapter 9—Department of Energy chapter 156,064 — eCFR ↗

“Level” is the narrowest level the reference actually names. A reference that names both a chapter and a part is a part-level reference and is counted as one.

Sub-agencies

Amendment activity

Sections amended in parts administered by Department of Energy 2,027 amendments, Oct 2023 – Sep 2026
Oct 2023 Sep 2026

15 further amendments in these titles carry no part identifier and cannot be attributed to a specific scope, so they are excluded from the chart rather than assigned to one.

Attribution is exact, not estimated: each scope is expanded to the set of parts inside it in the current structure, and only amendments to those parts are counted. Dated by issue date, not amendment date — the two differ in about half of all rows.