eCFR Analyzer

Drug Enforcement Administration (DEA)

190,280Words in 21 parts
14.1Restriction density (per 1,000 words)
21.9Reading grade
62.4%Unchanged since 2017
11Flagged parts
2026-11-02Last 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
40.7 words on average; 36.4% over 40 words; 42.1% passive; 14.9 cross-references per 1,000 words
Sentence types
definition 6.2% · prohibition 4.1% · paperwork 22.5% · obligation 21.1% · permission 12.4% · other 33.7%
Checksum
1675cd74fffb7bad2743c6fd91939c92f27cf7fdc767d1f3bb726028f3ce04f3 changed since last refresh

Review candidates in this agency

RankPartWordsScore
11 top 10% 21 CFR 1304 RECORDS AND REPORTS OF REGISTRANTS
High signals: Paperwork share +5.1 SD · Directive share +2.1 SD · Reading grade +1.8 SD · Restriction density +1.1 SD
 13,831 1.78
27 top 10% 21 CFR 1311 REQUIREMENTS FOR ELECTRONIC ORDERS AND PRESCRIPTIONS
High signals: Paperwork share +3.4 SD · Restriction density +2.6 SD · Directive share +2.0 SD
 11,990 1.54
138 top 10% 21 CFR 1301 REGISTRATION OF MANUFACTURERS, DISTRIBUTORS, AND DISPENSERS OF CONTROLLED SUBSTANCES
High signals: Paperwork share +1.7 SD · Directive share +1.7 SD · Size +1.2 SD · Reading grade +1.1 SD
 24,834 1.06
172 top 10% 21 CFR 1313 IMPORTATION AND EXPORTATION OF LIST I AND LIST II CHEMICALS
High signals: Paperwork share +3.2 SD · Directive share +1.6 SD
 8,375 1.03
189 top 10% 21 CFR 1306 PRESCRIPTIONS
High signals: Paperwork share +2.0 SD · Directive share +1.6 SD · Reading grade +1.0 SD
 11,202 1.01
202 top 10% 21 CFR 1312 IMPORTATION AND EXPORTATION OF CONTROLLED SUBSTANCES
High signals: Paperwork share +3.1 SD · Directive share +1.2 SD
 15,782 0.99
215 top 10% 21 CFR 1314 RETAIL SALE OF SCHEDULED LISTED CHEMICAL PRODUCTS
High signals: Paperwork share +2.1 SD · Directive share +1.6 SD · Restriction density +1.5 SD
 4,594 0.97
316 top 10% 21 CFR 1309 REGISTRATION OF MANUFACTURERS, DISTRIBUTORS, IMPORTERS AND EXPORTERS OF LIST I CHEMICALS
High signals: Paperwork share +1.8 SD · Directive share +1.4 SD · Restriction density +1.2 SD
 7,368 0.87
465 top 10% 21 CFR 1316 ADMINISTRATIVE FUNCTIONS, PRACTICES, AND PROCEDURES
High signals: Paperwork share +1.4 SD · Restriction density +1.1 SD · Directive share +1.0 SD
 7,876 0.78
510 top 10% 21 CFR 1303 QUOTAS
High signals: Reading grade +1.6 SD · Directive share +1.5 SD · Paperwork share +1.0 SD
 7,938 0.76
568 top 10% 21 CFR 1305 ORDERS FOR SCHEDULE I AND II CONTROLLED SUBSTANCES
High signals: Paperwork share +3.1 SD · Directive share +1.2 SD · Restriction density +1.0 SD
 5,237 0.74
812 21 CFR 1310 RECORDS AND REPORTS OF LISTED CHEMICALS AND CERTAIN MACHINES; IMPORTATION AND EXPORTATION OF CERTAIN MACHINES
High signals: Paperwork share +1.8 SD · Size +1.0 SD
 20,099 0.63
847 21 CFR 1317 DISPOSAL
High signals: Restriction density +1.3 SD · Reading grade +1.1 SD · Directive share +1.0 SD
 5,316 0.62
882 21 CFR 1315 IMPORTATION AND PRODUCTION QUOTAS FOR EPHEDRINE, PSEUDOEPHEDRINE, AND PHENYLPROPANOLAMINE
High signals: Paperwork share +1.3 SD · Directive share +1.0 SD
 8,036 0.60
1,411 21 CFR 1308 SCHEDULES OF CONTROLLED SUBSTANCES
High signals: Paperwork share +1.2 SD · Reading grade +1.0 SD
 19,257 0.44
2,378 21 CFR 1307 MISCELLANEOUS
High signals: Reading grade +2.4 SD
 1,548 0.18
2,499 21 CFR 1318 CONTROLS TO SATISFY THE REQUIREMENTS OF THE ACT APPLICABLE TO THE MANUFACTURING OF MARIHUANA
High signals: Directive share +1.9 SD · Restriction density +1.1 SD
 2,255 0.16
2,623 21 CFR 1302 LABELING AND PACKAGING REQUIREMENTS FOR CONTROLLED SUBSTANCES
High signals: Directive share +1.7 SD
 1,109 0.13
4,781 21 CFR 1300 DEFINITIONS
High signals: Reading grade +1.3 SD
 12,536 -0.38
6,401 21 CFR 1321 DEA MAILING ADDRESSES
High signals: none above 1 SD; ranked by the combined score
 1,093 -1.68

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 20. A flag is not a finding.

Statutes behind the most text

  • 21 U.S.C. 821: 98,787 words in 10 parts (51.9% of this agency's text)
  • 21 U.S.C. 802: 61,008 words in 6 parts (32.1% of this agency's text)
  • 21 U.S.C. 811: 27,133 words in 2 parts (14.3% of this agency's text)
  • 21 U.S.C. 871: 8,969 words in 2 parts (4.7% of this agency's text)
  • 21 U.S.C. 822: 7,876 words in 1 parts (4.1% of this agency's text)
  • 21 U.S.C. 830: 7,876 words in 1 parts (4.1% of this agency's text)
  • 21 U.S.C. 801: 2,255 words in 1 parts (1.2% of this agency's text)

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

Largest parts

  • 21 CFR 1301: REGISTRATION OF MANUFACTURERS, DISTRIBUTORS, AND DISPENSERS OF CONTROLLED SUBSTANCES (24,834 words)
  • 21 CFR 1310: RECORDS AND REPORTS OF LISTED CHEMICALS AND CERTAIN MACHINES; IMPORTATION AND EXPORTATION OF CERTAIN MACHINES (20,099 words)
  • 21 CFR 1308: SCHEDULES OF CONTROLLED SUBSTANCES (19,257 words)
  • 21 CFR 1312: IMPORTATION AND EXPORTATION OF CONTROLLED SUBSTANCES (15,782 words)
  • 21 CFR 1304: RECORDS AND REPORTS OF REGISTRANTS (13,831 words)
  • 21 CFR 1300: DEFINITIONS (12,536 words)
  • 21 CFR 1311: REQUIREMENTS FOR ELECTRONIC ORDERS AND PRESCRIPTIONS (11,990 words)
  • 21 CFR 1306: PRESCRIPTIONS (11,202 words)
  • 21 CFR 1313: IMPORTATION AND EXPORTATION OF LIST I AND LIST II CHEMICALS (8,375 words)
  • 21 CFR 1315: IMPORTATION AND PRODUCTION QUOTAS FOR EPHEDRINE, PSEUDOEPHEDRINE, AND PHENYLPROPANOLAMINE (8,036 words)

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