Office of Secretary of the Interior
460,378Words in 49 parts
11.1Restriction density (per 1,000 words)
18.5Reading grade
67.0%Unchanged since 2017
5Flagged parts
2026-10-27Last change
Section changes per year
From the eCFR versioner, for the parts that the agency owns now. Before 2017 is the baseline load.
Text and size
- Sentences
- 32.6 words on average; 25.7% over 40 words; 32.1% passive; 12.0 cross-references per 1,000 words
- Sentence types
- definition 7.5% · prohibition 4.1% · paperwork 8.3% · obligation 19.3% · permission 15.8% · other 45.0%
- Checksum
6a6cffb5cf584f4eb2d9f1584f8c7493b63d42dd1a467735ded26c273fd7294d
Review candidates in this agency
| Rank | Part | Words | Score |
|---|---|---|---|
| 38 top 10% | 43 CFR 23
SURFACE EXPLORATION, MINING AND RECLAMATION OF LANDS
High signals: Directive share
+2.7 SD · Reading grade
+2.1 SD · Paperwork share
+2.0 SD · Restriction density
+1.1 SD |
5,292 | 1.45 |
| 71 top 10% | 43 CFR 6
PATENT REGULATIONS
High signals: Paperwork share
+2.4 SD · Directive share
+1.9 SD · Reading grade
+1.4 SD |
5,604 | 1.24 |
| 308 top 10% | 43 CFR 13
VENDING FACILITIES OPERATED BY BLIND PERSONS
High signals: Restriction density
+2.9 SD · Directive share
+2.7 SD |
1,618 | 0.88 |
| 371 top 10% | 43 CFR 36
TRANSPORTATION AND UTILITY SYSTEMS IN AND ACROSS, AND ACCESS INTO, CONSERVATION SYSTEM UNITS IN ALASKA
High signals: Paperwork share
+1.5 SD · Directive share
+1.4 SD · Restriction density
+1.1 SD |
6,437 | 0.84 |
| 557 top 10% | 43 CFR 18
NEW RESTRICTIONS ON LOBBYING
High signals: Paperwork share
+1.6 SD |
4,892 | 0.74 |
| 924 | 43 CFR 29
TRANS-ALASKA PIPELINE LIABILITY FUND
High signals: Directive share
+1.7 SD · Restriction density
+1.6 SD |
4,757 | 0.58 |
| 931 | 43 CFR 7
PROTECTION OF ARCHAEOLOGICAL RESOURCES
High signals: none above 1 SD; ranked by the combined score |
10,647 | 0.58 |
| 945 | 43 CFR 34
REQUIREMENTS FOR EQUAL OPPORTUNITY DURING CONSTRUCTION AND OPERATION OF THE ALASKA NATURAL GAS TRANSPORTATION SYSTEM
High signals: Reading grade
+1.1 SD |
6,552 | 0.58 |
| 987 | 43 CFR 27
NONDISCRIMINATION IN ACTIVITIES CONDUCTED UNDER PERMITS, RIGHTS-OF-WAY, PUBLIC LAND ORDERS, AND OTHER FEDERAL AUTHORIZATIONS GRANTED OR ISSUED UNDER TITLE II OF PUBLIC LAW 93-153
High signals: none above 1 SD; ranked by the combined score |
7,219 | 0.56 |
| 1,007 | 43 CFR 22
ADMINISTRATIVE CLAIMS UNDER THE FEDERAL TORT CLAIMS ACT AND INDEMNIFICATION OF DEPARTMENT OF THE INTERIOR EMPLOYEES
High signals: Directive share
+1.9 SD · Restriction density
+1.4 SD |
1,455 | 0.56 |
| 1,172 | 43 CFR 32
GRANTS TO STATES FOR ESTABLISHING YOUNG ADULT CONSERVATION CORPS (YACC) PROGRAM
High signals: Restriction density
+1.9 SD |
6,498 | 0.51 |
| 1,296 | 43 CFR 35
ADMINISTRATIVE REMEDIES FOR FRAUDULENT CLAIMS AND STATEMENTS
High signals: none above 1 SD; ranked by the combined score |
9,987 | 0.47 |
| 1,732 | 43 CFR 41
NONDISCRIMINATION ON THE BASIS OF SEX IN EDUCATION PROGRAMS OR ACTIVITIES RECEIVING FEDERAL FINANCIAL ASSISTANCE
High signals: none above 1 SD; ranked by the combined score |
10,125 | 0.35 |
| 1,776 | 43 CFR 17
NONDISCRIMINATION IN FEDERALLY ASSISTED PROGRAMS OF THE DEPARTMENT OF THE INTERIOR
High signals: Size
+1.2 SD |
24,037 | 0.34 |
| 1,828 | 43 CFR 4
DEPARTMENT OF THE INTERIOR HEARINGS AND APPEALS PROCEDURES
High signals: Size
+2.3 SD |
86,292 | 0.32 |
| 2,006 | 43 CFR 10
NATIVE AMERICAN GRAVES PROTECTION AND REPATRIATION REGULATIONS
High signals: Size
+1.2 SD |
23,982 | 0.27 |
| 2,105 | 43 CFR 11
NATURAL RESOURCE DAMAGE ASSESSMENTS
High signals: Size
+1.5 SD |
34,923 | 0.25 |
| 2,114 | 43 CFR 21
OCCUPANCY OF CABIN SITES ON PUBLIC CONSERVATION AND RECREATION AREAS
High signals: none above 1 SD; ranked by the combined score |
2,672 | 0.25 |
| 2,145 | 43 CFR 2
FREEDOM OF INFORMATION ACT; RECORDS AND TESTIMONY
High signals: Size
+1.3 SD |
27,863 | 0.24 |
| 2,263 | 43 CFR 19
WILDERNESS PRESERVATION
High signals: none above 1 SD; ranked by the combined score |
2,062 | 0.21 |
| 2,377 | 43 CFR 3
PRESERVATION OF AMERICAN ANTIQUITIES
High signals: Restriction density
+1.3 SD |
1,164 | 0.18 |
| 2,750 | 43 CFR 50
PROCEDURES FOR REESTABLISHING A FORMAL GOVERNMENT-TO-GOVERNMENT RELATIONSHIP WITH THE NATIVE HAWAIIAN COMMUNITY
High signals: Reading grade
+1.6 SD |
4,125 | 0.09 |
| 2,943 | 43 CFR 45
CONDITIONS AND PRESCRIPTIONS IN FERC HYDROPOWER LICENSES
High signals: none above 1 SD; ranked by the combined score |
13,833 | 0.05 |
| 2,956 | 43 CFR 20
EMPLOYEE RESPONSIBILITIES AND CONDUCT
High signals: none above 1 SD; ranked by the combined score |
6,559 | 0.05 |
| 3,079 | 43 CFR 46
IMPLEMENTATION OF THE NATIONAL ENVIRONMENTAL POLICY ACT OF 1969
High signals: none above 1 SD; ranked by the combined score |
3,798 | 0.02 |
Score: the mean of six signals, in standard deviations (SD). Across the CFR, the top 641 of 6,402 ranked parts (10%) get a flag for review; this list shows 25. A flag is not a finding.
Statutes behind the most text
- 5 U.S.C. 301: 178,881 words in 13 parts (38.9% of this agency's text)
- 25 U.S.C. 9: 133,578 words in 3 parts (29.0% of this agency's text)
- 43 U.S.C. 1201: 124,367 words in 7 parts (27.0% of this agency's text)
- 25 U.S.C. 2: 97,712 words in 5 parts (21.2% of this agency's text)
- 16 U.S.C. 3: 91,598 words in 2 parts (19.9% of this agency's text)
- 18 U.S.C. 3551: 88,926 words in 1 parts (19.3% of this agency's text)
- 43 U.S.C. 1733: 88,926 words in 1 parts (19.3% of this agency's text)
- 31 U.S.C. 9701: 88,550 words in 2 parts (19.2% of this agency's text)
- 30 U.S.C. 181: 86,805 words in 2 parts (18.9% of this agency's text)
- 25 U.S.C. 396: 86,292 words in 1 parts (18.7% of this agency's text)
From the authority notes. A citation is not proof that the statute requires the rule.
Largest parts
- 43 CFR 51: SUBSISTENCE MANAGEMENT REGULATIONS FOR PUBLIC LANDS IN ALASKA (88,926 words)
- 43 CFR 4: DEPARTMENT OF THE INTERIOR HEARINGS AND APPEALS PROCEDURES (86,292 words)
- 43 CFR 11: NATURAL RESOURCE DAMAGE ASSESSMENTS (34,923 words)
- 43 CFR 2: FREEDOM OF INFORMATION ACT; RECORDS AND TESTIMONY (27,863 words)
- 43 CFR 17: NONDISCRIMINATION IN FEDERALLY ASSISTED PROGRAMS OF THE DEPARTMENT OF THE INTERIOR (24,037 words)
- 43 CFR 10: NATIVE AMERICAN GRAVES PROTECTION AND REPATRIATION REGULATIONS (23,982 words)
- 43 CFR 30: INDIAN PROBATE HEARINGS PROCEDURES (23,304 words)
- 43 CFR 45: CONDITIONS AND PRESCRIPTIONS IN FERC HYDROPOWER LICENSES (13,833 words)
- 43 CFR 7: PROTECTION OF ARCHAEOLOGICAL RESOURCES (10,647 words)
- 43 CFR 41: NONDISCRIMINATION ON THE BASIS OF SEX IN EDUCATION PROGRAMS OR ACTIVITIES RECEIVING FEDERAL FINANCIAL ASSISTANCE (10,125 words)
Reading grade and sentence types are approximate. Simple rules label each sentence; the first match wins.