eCFR Analyzer

U.S. Customs and Border Protection (USCBP)

1,274,595Words in 60 parts
9.0Restriction density (per 1,000 words)
20.2Reading grade
69.8%Unchanged since 2017
4Flagged parts
2026-10-29Last 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
38.4 words on average; 33.0% over 40 words; 41.0% passive; 13.7 cross-references per 1,000 words
Sentence types
definition 4.5% · prohibition 2.2% · paperwork 9.4% · obligation 17.5% · permission 10.9% · other 55.6%
Checksum
ed6a5474371f26527c12f29399c0b6cea625f7fbdcb3b656b5f2f32e2419a0db

Review candidates in this agency

RankPartWordsScore
110 top 10% 19 CFR 11 PACKING AND STAMPING; MARKING
High signals: Directive share +2.2 SD · Reading grade +2.2 SD · Restriction density +1.4 SD
 3,805 1.12
125 top 10% 19 CFR 54 CERTAIN IMPORTATIONS TEMPORARILY FREE OF DUTY
High signals: Paperwork share +4.2 SD · Directive share +2.4 SD · Reading grade +2.2 SD
 1,055 1.08
126 top 10% 19 CFR 4 VESSELS IN FOREIGN AND DOMESTIC TRADES
High signals: Size +1.8 SD · Paperwork share +1.5 SD · Directive share +1.2 SD
 50,524 1.08
166 top 10% 19 CFR 19 CUSTOMS WAREHOUSES, CONTAINER STATIONS AND CONTROL OF MERCHANDISE THEREIN
High signals: Paperwork share +1.6 SD · Directive share +1.4 SD · Size +1.2 SD · Restriction density +1.1 SD
 24,506 1.04
660 19 CFR 122 AIR COMMERCE REGULATIONS
High signals: Size +1.9 SD · Restriction density +1.3 SD
 51,954 0.69
811 19 CFR 181 NORTH AMERICAN FREE TRADE AGREEMENT
High signals: Size +2.4 SD · Reading grade +2.2 SD
 100,324 0.63
859 19 CFR 144 WAREHOUSE AND REWAREHOUSE ENTRIES AND WITHDRAWALS
High signals: Paperwork share +1.5 SD · Restriction density +1.2 SD
 7,799 0.61
943 19 CFR 12 SPECIAL CLASSES OF MERCHANDISE
High signals: Size +1.7 SD
 41,238 0.58
946 19 CFR 123 CBP RELATIONS WITH CANADA AND MEXICO
High signals: none above 1 SD; ranked by the combined score
 18,620 0.58
993 19 CFR 158 RELIEF FROM DUTIES ON MERCHANDISE LOST, DAMAGED, ABANDONED, OR EXPORTED
High signals: Paperwork share +1.5 SD
 4,694 0.56
1,083 19 CFR 125 CARTAGE AND LIGHTERAGE OF MERCHANDISE
High signals: Directive share +1.5 SD · Restriction density +1.1 SD
 2,346 0.53
1,122 19 CFR 142 ENTRY PROCESS
High signals: Restriction density +1.4 SD
 9,973 0.52
1,288 19 CFR 10 ARTICLES CONDITIONALLY FREE, SUBJECT TO A REDUCED RATE, ETC.
High signals: Size +3.2 SD
 238,899 0.47
1,299 19 CFR 112 CARRIERS, CARTMEN, AND LIGHTERMEN
High signals: Restriction density +1.4 SD
 5,154 0.47
1,424 19 CFR 191 DRAWBACK
High signals: Size +2.2 SD
 74,638 0.43
1,428 19 CFR 163 RECORDKEEPING
High signals: none above 1 SD; ranked by the combined score
 13,893 0.43
1,453 19 CFR 174 PROTESTS
High signals: Paperwork share +1.7 SD
 6,375 0.43
1,518 19 CFR 118 CENTRALIZED EXAMINATION STATIONS
High signals: Reading grade +1.0 SD
 3,152 0.41
1,579 19 CFR 141 ENTRY OF MERCHANDISE
High signals: Size +1.4 SD
 29,232 0.39
1,640 19 CFR 162 INSPECTION, SEARCH, AND SEIZURE
High signals: none above 1 SD; ranked by the combined score
 18,759 0.38
1,663 19 CFR 24 CUSTOMS FINANCIAL AND ACCOUNTING PROCEDURE
High signals: Size +1.7 SD
 41,767 0.37
1,744 19 CFR 175 PETITIONS BY DOMESTIC INTERESTED PARTIES
High signals: none above 1 SD; ranked by the combined score
 1,811 0.34
1,795 19 CFR 148 PERSONAL DECLARATIONS AND EXEMPTIONS
High signals: Size +1.2 SD
 23,584 0.33
1,796 19 CFR 7 CUSTOMS RELATIONS WITH INSULAR POSSESSIONS AND GUANTANAMO BAY NAVAL STATION
High signals: Reading grade +2.1 SD
 3,487 0.33
1,996 19 CFR 115 CARGO CONTAINER AND ROAD VEHICLE CERTIFICATION PURSUANT TO INTERNATIONAL CUSTOMS CONVENTIONS
High signals: none above 1 SD; ranked by the combined score
 5,548 0.28

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

  • 19 U.S.C. 66: 1,168,846 words in 52 parts (91.7% of this agency's text)
  • 5 U.S.C. 301: 457,805 words in 21 parts (35.9% of this agency's text)
  • 19 U.S.C. 1520: 447,269 words in 3 parts (35.1% of this agency's text)
  • 19 U.S.C. 1557: 418,679 words in 5 parts (32.8% of this agency's text)
  • 19 U.S.C. 1309: 387,149 words in 3 parts (30.4% of this agency's text)
  • 19 U.S.C. 1202: 369,044 words in 7 parts (29.0% of this agency's text)
  • 19 U.S.C. 1322: 320,003 words in 4 parts (25.1% of this agency's text)
  • 19 U.S.C. 1401a: 268,131 words in 2 parts (21.0% of this agency's text)
  • 16 U.S.C. 1521: 238,899 words in 1 parts (18.7% of this agency's text)
  • 19 U.S.C. 1313: 238,899 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

  • 19 CFR 10: ARTICLES CONDITIONALLY FREE, SUBJECT TO A REDUCED RATE, ETC. (238,899 words)
  • 19 CFR 182: UNITED STATES-MEXICO-CANADA AGREEMENT (108,046 words)
  • 19 CFR 181: NORTH AMERICAN FREE TRADE AGREEMENT (100,324 words)
  • 19 CFR 191: DRAWBACK (74,638 words)
  • 19 CFR 190: MODERNIZED DRAWBACK (73,612 words)
  • 19 CFR 102: RULES OF ORIGIN (56,014 words)
  • 19 CFR 122: AIR COMMERCE REGULATIONS (51,954 words)
  • 19 CFR 4: VESSELS IN FOREIGN AND DOMESTIC TRADES (50,524 words)
  • 19 CFR 24: CUSTOMS FINANCIAL AND ACCOUNTING PROCEDURE (41,767 words)
  • 19 CFR 12: SPECIAL CLASSES OF MERCHANDISE (41,238 words)

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