eCFR Analyzer

Federal Highway Administration (FHWA)

394,819Words in 69 parts
11.9Restriction density (per 1,000 words)
18.8Reading grade
0.0%Unchanged since 2017
0Flagged parts
2026-09-11Last 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
32.0 words on average; 24.5% over 40 words; 33.7% passive; 13.4 cross-references per 1,000 words
Sentence types
definition 6.0% · prohibition 3.1% · paperwork 6.0% · obligation 24.7% · permission 10.7% · other 49.6%
Checksum
0e229181982abc9dc196886ce564af0ded87dd207edf9497ae5d0112d13e9a69

Review candidates in this agency

RankPartWordsScore
771 23 CFR 669 ENFORCEMENT OF HEAVY VEHICLE USE TAX
High signals: Paperwork share +3.7 SD · Directive share +1.5 SD
1,368 0.65
1,049 23 CFR 490 NATIONAL PERFORMANCE MANAGEMENT MEASURES
High signals: Size +1.4 SD · Directive share +1.2 SD
29,791 0.54
1,602 23 CFR 1235 UNIFORM SYSTEM FOR PARKING FOR PERSONS WITH DISABILITIES
High signals: Paperwork share +2.0 SD · Directive share +1.7 SD · Restriction density +1.5 SD
1,331 0.39
1,736 23 CFR 172 PROCUREMENT, MANAGEMENT, AND ADMINISTRATION OF ENGINEERING AND DESIGN RELATED SERVICES
High signals: Directive share +1.3 SD
9,171 0.34
2,272 23 CFR 192 DRUG OFFENDER'S DRIVER'S LICENSE SUSPENSION
High signals: Paperwork share +2.0 SD · Directive share +1.0 SD
1,404 0.21
2,332 23 CFR 635 CONSTRUCTION AND MAINTENANCE
High signals: Size +1.1 SD
22,373 0.19
2,448 23 CFR 1200 UNIFORM PROCEDURES FOR STATE HIGHWAY SAFETY GRANT PROGRAMS
High signals: Size +1.3 SD
26,089 0.17
2,561 23 CFR 450 PLANNING ASSISTANCE AND STANDARDS
High signals: Size +1.5 SD · Reading grade +1.2 SD
32,926 0.14
2,682 23 CFR 778 PILOT PROGRAM FOR ELIMINATING DUPLICATION OF ENVIRONMENTAL REVIEWS
High signals: Reading grade +1.9 SD
2,717 0.11
2,713 23 CFR 230 EXTERNAL PROGRAMS
High signals: none above 1 SD; ranked by the combined score
17,234 0.10
2,919 23 CFR 1225 OPERATION OF MOTOR VEHICLES BY INTOXICATED PERSONS
High signals: Paperwork share +1.5 SD
3,095 0.05
2,988 23 CFR 1215 USE OF SAFETY BELTS—COMPLIANCE AND TRANSFER-OF-FUNDS PROCEDURES
High signals: Directive share +1.6 SD
1,415 0.04
3,149 23 CFR 515 ASSET MANAGEMENT PLANS
High signals: none above 1 SD; ranked by the combined score
5,298 0.01
3,272 23 CFR 773 SURFACE TRANSPORTATION PROJECT DELIVERY PROGRAM APPLICATION REQUIREMENTS AND TERMINATION
High signals: none above 1 SD; ranked by the combined score
5,531 -0.02
3,356 23 CFR 420 PLANNING AND RESEARCH PROGRAM ADMINISTRATION
High signals: none above 1 SD; ranked by the combined score
7,113 -0.04
3,451 23 CFR 710 RIGHT-OF-WAY AND REAL ESTATE
High signals: none above 1 SD; ranked by the combined score
13,998 -0.06
3,650 23 CFR 645 UTILITIES
High signals: none above 1 SD; ranked by the combined score
11,535 -0.10
3,658 23 CFR 627 VALUE ENGINEERING
High signals: none above 1 SD; ranked by the combined score
2,313 -0.10
3,912 23 CFR 658 TRUCK SIZE AND WEIGHT, ROUTE DESIGNATIONS—LENGTH, WIDTH AND WEIGHT LIMITATIONS
High signals: Size +1.7 SD
45,016 -0.16
4,036 23 CFR 1210 OPERATION OF MOTOR VEHICLES BY INTOXICATED MINORS
High signals: Paperwork share +1.6 SD
1,150 -0.19
4,273 23 CFR 646 RAILROADS
High signals: none above 1 SD; ranked by the combined score
6,007 -0.25
4,306 23 CFR 810 MASS TRANSIT AND SPECIAL USE HIGHWAY PROJECTS
High signals: none above 1 SD; ranked by the combined score
3,377 -0.26
4,366 23 CFR 680 NATIONAL ELECTRIC VEHICLE INFRASTRUCTURE STANDARDS AND REQUIREMENTS
High signals: none above 1 SD; ranked by the combined score
4,813 -0.27
4,371 23 CFR 657 CERTIFICATION OF SIZE AND WEIGHT ENFORCEMENT
High signals: none above 1 SD; ranked by the combined score
3,388 -0.27
4,511 23 CFR 650 BRIDGES, STRUCTURES, AND HYDRAULICS
High signals: none above 1 SD; ranked by the combined score
17,116 -0.32

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

  • 23 U.S.C. 101: 92,618 words in 12 parts (23.5% of this agency's text)
  • 23 U.S.C. 134: 62,717 words in 2 parts (15.9% of this agency's text)
  • 23 U.S.C. 127: 48,404 words in 2 parts (12.3% of this agency's text)
  • 49 U.S.C. 31111: 48,404 words in 2 parts (12.3% of this agency's text)
  • 23 U.S.C. 106: 35,799 words in 4 parts (9.1% of this agency's text)
  • 42 U.S.C. 2000d: 33,392 words in 3 parts (8.5% of this agency's text)
  • 42 U.S.C. 7410: 32,926 words in 1 parts (8.3% of this agency's text)
  • 49 U.S.C. 5303: 32,926 words in 1 parts (8.3% of this agency's text)
  • 23 U.S.C. 109: 29,035 words in 9 parts (7.4% of this agency's text)
  • 23 U.S.C. 402: 26,089 words in 1 parts (6.6% of this agency's text)

From the authority notes. A citation is not proof that the statute requires the rule.

Largest parts

  • 23 CFR 658: TRUCK SIZE AND WEIGHT, ROUTE DESIGNATIONS—LENGTH, WIDTH AND WEIGHT LIMITATIONS (45,016 words)
  • 23 CFR 450: PLANNING ASSISTANCE AND STANDARDS (32,926 words)
  • 23 CFR 490: NATIONAL PERFORMANCE MANAGEMENT MEASURES (29,791 words)
  • 23 CFR 1200: UNIFORM PROCEDURES FOR STATE HIGHWAY SAFETY GRANT PROGRAMS (26,089 words)
  • 23 CFR 635: CONSTRUCTION AND MAINTENANCE (22,373 words)
  • 23 CFR 230: EXTERNAL PROGRAMS (17,234 words)
  • 23 CFR 650: BRIDGES, STRUCTURES, AND HYDRAULICS (17,116 words)
  • 23 CFR 771: ENVIRONMENTAL IMPACT AND RELATED PROCEDURES (15,296 words)
  • 23 CFR 710: RIGHT-OF-WAY AND REAL ESTATE (13,998 words)
  • 23 CFR 750: HIGHWAY BEAUTIFICATION (12,023 words)

Reading grade and sentence types are approximate. Simple rules label each sentence; the first match wins.