California Department of Pesticide Regulation 

Volatile Organic Compound Regulations 

Field Fumigation Methods (FFM), FFM Code for Pesticide Use Reporting, and Emission ratings 

Regulation 

Section Field Fumigation Method FFM Code Emission Rating (%)

6447.3. Methyl Bromide Fumigation Methods (With or without chloropicrin) 1100 series 

6447.3(a)(1) Nontarpaulin/Shallow/Bed 1101 100* 

6447.3(a)(2) Nontarpaulin/Deep/Broadcast 1102 74* 

6447.3(a)(3) Tarpaulin/Shallow/Broadcast – Nobel Plow 1103 48 

 Tarpaulin/Shallow/Broadcast – Nobel Plow – Strip 1104 74* 

 Tarpaulin/Shallow/Broadcast – Closing shoes and compaction roller 1105 100* 

6447.3(a)(4) Tarpaulin/Shallow/Bed 1106 100* 

6447.3(a)(5) Tarpaulin/Deep/Broadcast 1107 48 

 Tarpaulin/Deep/Broadcast – Strip 1108 74* 

6447.3(a)(6) Drip System - Hot Gas 1109 100* 

Other label method for Methyl Bromide (with or without chloropicrin)** 1190 --- 

6448.1. 1,3-Dichloropropene Fumigation Methods (with or without chloropicrin) 1200 series 

6448.1(c)(1) Nontarpaulin/Shallow/Broadcast or Bed 1201 65* 

6448.1(c)(2) Tarpaulin/Shallow/Broadcast 1202 65* 

 Tarpaulin/Shallow/Bed 1203 65* 

6448.1(c)(3) Nontarpaulin/Shallow/Broadcast /Three Water Treatments 1204 44 

6448.1(c)(4) Tarpaulin/Shallow/Bed/Three Water Treatment 1205 44 

6448.1(c)(5) Nontarpaulin/Deep/Broadcast or Bed 1206 26 

6448.1(c)(6) Tarpaulin/Deep/Broadcast 1207 26 

 Tarpaulin/Deep/Bed 1208 26 

6448.1(c)(7) Chemigation (Drip System)/Tarpaulin 1209 19 

Other label method for 1,3-Dichloropropene (with or without chloropicrin)** 1290 --- 

6449.1 Chloropicrin-Fumigation Methods 1100-1300 series 

6447.3(a)(1) Nontarpaulin/Shallow/Bed 1101 64* 

6447.3(a)(2) Nontarpaulin/Deep/Broadcast 1102 64* 

6447.3(a)(3) Tarpaulin/Shallow/Broadcast – Nobel Plow 1103 44 

 Tarpaulin/Shallow/Broadcast – Nobel Plow – Strip 1104 64* 

 Tarpaulin/Shallow/Broadcast – Closing shoes and compaction roller 1105 64* 

6447.3(a)(4) Tarpaulin/Shallow/Bed 1106 64* 

6447.3(a)(5) Tarpaulin/Deep/Broadcast 1107 44 

 Tarpaulin/Deep/Broadcast – Strip 1108 64* 

6448.1(c)(1) Nontarpaulin/Shallow/Broadcast or Bed 1201 64* 

6448.1(c)(2) Tarpaulin/Shallow/Broadcast 1202 44 

 Tarpaulin/Shallow/Bed 1203 64* 

6448.1(c)(3) Nontarpaulin/Shallow/Broadcast /Three Water Treatments 1204 43 

6448.1(c)(4) Tarpaulin/Shallow/Bed/Three Water Treatment 1205 43 

6448.1(c)(5) Nontarpaulin/Deep/Broadcast or Bed 1206 64* 

6448.1(c)(6) Tarpaulin/Deep/Broadcast 1207 44 

 Tarpaulin/Deep/Bed 1208 44 

6448.1(c)(7) Chemigation (Drip System)/Tarpaulin 1209 12 

Other label method for Chloropicrin** 1390 --- 

December 2010 
Regulation 

Section Field Fumigation Method FFM Code Emission Rating (%)

6450.1. Metam-Sodium and Metam-Potassium Fumigation Methods 1400 series 

6450.1(d)(1) Day Sprinkler/Broadcast or Bed/One Water Treatment 1401 77* 

6450.1(d)(2) Day Sprinkler/Broadcast or Bed/Two Water Treatments 1402 28 

6450.1(d)(3) Day Sprinkler/Broadcast or Bed/Three Water Treatments 1403 21 

6450.1(d)(4) Day Nontarpaulin/Shallow/Broadcast or Bed/One Water Treatment 1404 77* 

6450.1(d)(5) Day Nontarpaulin/Shallow/Broadcast or Bed /Two Water Treatments 1405 28 

6450.1(d)(6) Day Nontarpaulin/Shallow/Broadcast or Bed/Three Water Treatments 1406 21 

6450.1(d)(7) Day Chemigation (Drip System) Tarpaulin 1407 9 

Day Chemigation (Drip System) Nontarpaulin 1408 9 

6450.1(d)(8) Day Rotary Tiller 1409 14 

 Day Power Mulcher 1410 14 

 Day Soil Capping 1411 14 

6450.1(d)(9) Day or Night Flood 1412 77* 

6452 Day Drench 1413 100 

6452 Night 1A.M. Start/Sprinkler/Broadcast or Bed/Two Water Treatments 1452 77* 

6452 Night Nontarpaulin/Shallow/Broadcast or Bed/Two Water Treatments 1455 28 

6452 Night 4A.M. Start/sprinkler/Broadcast or Bed/Two Water Treatments 1472 35 

 

Other label method for Metam-Sodium and Metam-Potassium** 1490 --- 

6450.2. Dazomet Fumigation Methods 1500 series 

 Day Soil incorporation 1501 17 

 Day Surface application – water incorporation 1502 17 

 Other label method for Dazomet** 1590 --- 

6451.1 Sodium Tetrathiocarbonate Fumigation Methods 1600 series 

 Chemigation (Drip) 1601 10 

 Chemigation (mini-sprinkler) 1602 10 

 Chemigation (flood, basin) 1603 10 

 Chemigation (furrow, border) 1604 10 

 Chemigation (foggers, jets, misters, other) 1605 10 

 Other label method for Sodium Tetrathiocarbonate** 1690 --- 

6446.1 Methyl Iodide Fumigation Methods 1700 Series 

Day Tarpaulin/Shallow/Broadcast 1701 100 

Day Tarpaulin/Shallow/Bed 1702 100

Day Tarpaulin/Deep/Broadcast 1703 100

Day Chemigation (Drip)/Tarpaulin 1704 100

Day Auger-Probe 1705 100

All Field fumigation methods can occur day or night except where indicated. 

*Method prohibited within the San Joaquin Valley, Southeast Desert, and Ventura nonattaninment areas 

during May 1 – October 31. 

**For use only outside of the May 1 – October 31 time period: or areas outside of the nonattainment 

areas; or for exempted applications (such as described in Sections 6447, 6448, 6449, 6450, and 6451) 

December 2010