Transportation Security Administration (TSA)
133,959Words in 27 parts
11.1Restriction density (per 1,000 words)
17.0Reading grade
69.4%Unchanged since 2017
0Flagged parts
2026-02-17Last 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
- 27.6 words on average; 22.3% over 40 words; 17.7% passive; 13.9 cross-references per 1,000 words
- Sentence types
- definition 6.1% · prohibition 1.8% · paperwork 7.2% · obligation 17.0% · permission 12.2% · other 55.7%
- Checksum
4114d5993305cada0e4bb5e62fdaf2203a484d39915d9af9a52e1553c9a11cc3
Review candidates in this agency
| Rank | Part | Words | Score |
|---|---|---|---|
| 1,304 | 49 CFR 1542
AIRPORT SECURITY
High signals: Restriction density
+1.0 SD |
10,309 | 0.47 |
| 1,337 | 49 CFR 1544
AIRCRAFT OPERATOR SECURITY: AIR CARRIERS AND COMMERCIAL OPERATORS
High signals: none above 1 SD; ranked by the combined score |
16,300 | 0.46 |
| 2,206 | 49 CFR 1546
FOREIGN AIR CARRIER SECURITY
High signals: none above 1 SD; ranked by the combined score |
6,176 | 0.23 |
| 2,679 | 49 CFR 1510
PASSENGER CIVIL AVIATION SECURITY SERVICE FEES
High signals: none above 1 SD; ranked by the combined score |
2,055 | 0.11 |
| 2,733 | 49 CFR 1548
INDIRECT AIR CARRIER SECURITY
High signals: none above 1 SD; ranked by the combined score |
4,325 | 0.10 |
| 2,766 | 49 CFR 1549
CERTIFIED CARGO SCREENING PROGRAM
High signals: none above 1 SD; ranked by the combined score |
3,985 | 0.09 |
| 3,146 | 49 CFR 1503
INVESTIGATIVE AND ENFORCEMENT PROCEDURES
High signals: none above 1 SD; ranked by the combined score |
18,465 | 0.01 |
| 3,147 | 49 CFR 1572
CREDENTIALING AND SECURITY THREAT ASSESSMENTS
High signals: none above 1 SD; ranked by the combined score |
11,072 | 0.01 |
| 3,283 | 49 CFR 1562
OPERATIONS IN THE WASHINGTON, DC, METROPOLITAN AREA
High signals: none above 1 SD; ranked by the combined score |
4,893 | -0.02 |
| 3,694 | 49 CFR 1552
FLIGHT TRAINING SECURITY PROGRAM
High signals: none above 1 SD; ranked by the combined score |
4,881 | -0.11 |
| 4,035 | 49 CFR 1570
GENERAL RULES
High signals: none above 1 SD; ranked by the combined score |
6,484 | -0.19 |
| 4,369 | 49 CFR 1560
SECURE FLIGHT PROGRAM
High signals: none above 1 SD; ranked by the combined score |
4,935 | -0.27 |
| 4,672 | 49 CFR 1554
AIRCRAFT REPAIR STATION SECURITY
High signals: none above 1 SD; ranked by the combined score |
2,349 | -0.36 |
| 4,788 | 49 CFR 1511
AVIATION SECURITY INFRASTRUCTURE FEE
High signals: none above 1 SD; ranked by the combined score |
3,155 | -0.39 |
| 5,160 | 49 CFR 1540
CIVIL AVIATION SECURITY: GENERAL RULES
High signals: none above 1 SD; ranked by the combined score |
7,498 | -0.50 |
| 5,188 | 49 CFR 1584
HIGHWAY AND MOTOR CARRIER SECURITY
High signals: none above 1 SD; ranked by the combined score |
1,884 | -0.50 |
| 5,226 | 49 CFR 1507
PRIVACY ACT-EXEMPTIONS
High signals: none above 1 SD; ranked by the combined score |
5,620 | -0.51 |
| 5,253 | 49 CFR 1580
FREIGHT RAIL TRANSPORTATION SECURITY
High signals: none above 1 SD; ranked by the combined score |
4,985 | -0.52 |
| 5,314 | 49 CFR 1582
PUBLIC TRANSPORTATION AND PASSENGER RAILROAD SECURITY
High signals: none above 1 SD; ranked by the combined score |
2,456 | -0.54 |
| 5,544 | 49 CFR 1520
PROTECTION OF SENSITIVE SECURITY INFORMATION
High signals: none above 1 SD; ranked by the combined score |
4,128 | -0.62 |
| 5,836 | 49 CFR 1515
APPEAL AND WAIVER PROCEDURES FOR SECURITY THREAT ASSESSMENTS FOR INDIVIDUALS
High signals: none above 1 SD; ranked by the combined score |
4,923 | -0.74 |
| 6,263 | 49 CFR 1500
APPLICABILITY, TERMS, AND ABBREVIATIONS
High signals: none above 1 SD; ranked by the combined score |
2,368 | -1.04 |
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 22. A flag is not a finding.
Statutes behind the most text
- 49 U.S.C. 114: 133,949 words in 24 parts (100.0% of this agency's text)
- 6 U.S.C. 1151: 34,186 words in 5 parts (25.5% of this agency's text)
- 6 U.S.C. 1167: 32,302 words in 4 parts (24.1% of this agency's text)
- 6 U.S.C. 1137: 29,773 words in 4 parts (22.2% of this agency's text)
- 6 U.S.C. 1184: 29,201 words in 4 parts (21.8% of this agency's text)
- 6 U.S.C. 469: 27,360 words in 4 parts (20.4% of this agency's text)
- 6 U.S.C. 1142: 24,949 words in 2 parts (18.6% of this agency's text)
- 18 U.S.C. 842: 22,479 words in 3 parts (16.8% of this agency's text)
- 46 U.S.C. 70105: 22,479 words in 3 parts (16.8% of this agency's text)
- 18 U.S.C. 6002: 18,465 words in 1 parts (13.8% of this agency's text)
From the authority notes. A citation is not proof that the statute requires the rule.
Largest parts
- 49 CFR 1503: INVESTIGATIVE AND ENFORCEMENT PROCEDURES (18,465 words)
- 49 CFR 1544: AIRCRAFT OPERATOR SECURITY: AIR CARRIERS AND COMMERCIAL OPERATORS (16,300 words)
- 49 CFR 1572: CREDENTIALING AND SECURITY THREAT ASSESSMENTS (11,072 words)
- 49 CFR 1542: AIRPORT SECURITY (10,309 words)
- 49 CFR 1540: CIVIL AVIATION SECURITY: GENERAL RULES (7,498 words)
- 49 CFR 1570: GENERAL RULES (6,484 words)
- 49 CFR 1546: FOREIGN AIR CARRIER SECURITY (6,176 words)
- 49 CFR 1507: PRIVACY ACT-EXEMPTIONS (5,620 words)
- 49 CFR 1580: FREIGHT RAIL TRANSPORTATION SECURITY (4,985 words)
- 49 CFR 1560: SECURE FLIGHT PROGRAM (4,935 words)
Reading grade and sentence types are approximate. Simple rules label each sentence; the first match wins.