HAR §11-37-23
HAR §11-37-23. Required testing for contamination and contaminant limits
Cite as Haw. Code R. § 11-37-23
(a) A representative sample of every batch of packaged manufactured hemp product shall be tested for contamination by a laboratory meeting the requirements of section 11-37-20, including the use of appropriate methods to quantify the presence of all contaminants listed in subsection (b).
(b) A sample and the associated batch of manufactured hemp product is considered adulterated if laboratory results for the testing required in subsection (a) exceed the specified concentration limit for any of the following contaminants:
(1) Heavy metals listed in Table 1;
Table 1
| Heavy metal | Limit (parts per million) |
| --- | --- |
| Arsenic | 10.0 ppm |
| Cadmium | 4.0 ppm |
| Lead | 6.0 ppm |
| Mercury | 2.0 ppm |
(2) Pesticides listed in Table 2, each with a limit of 1.0 parts per million (ppm);
Table 2
| | Chemical Abstracts Service Registry Number |
| --- | --- |
| Pesticide | (CAS No.) |
| Abamectin | 71751-41-2 |
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| Acephate | 30560-19-1 |
| --- | --- |
| Acequinocyl | 57960-19-7 |
| Acetamiprid | 135410-20-7 |
| Aldicarb | 116-06-3 |
| Azoxystrobin | 131860-33-8 |
| Bifenazate | 149877-41-8 |
| Bifenthrin | 82657-04-3 |
| Boscalid | 188425-85-6 |
| Carbaryl | 63-25-2 |
| Carbofuran | 1563-66-2 |
| Chlorantraniliprole | 500008-45-7 |
| Chlorfenapyr | 122453-73-0 |
| Chlorpyrifos | 2921-88-2 |
| Clofentezine | 74115-24-5 |
| Cyfluthrin | 68359-37-5 |
| Cypermethrin | 52315-07-8 |
| DDVP (Dichlorvos) | 62-73-7 |
| Diazinon | 333-41-5 |
| Dimethoate | 60-51-5 |
| Ethoprophos | 13194-48-4 |
| Etofenprox | 80844-07-1 |
| Etoxazole | 153233-91-1 |
| Fenpyroximate | 134098-61-6 |
| Fipronil | 120068-37-3 |
| Flonicamid | 158062-67-0 |
| Fludioxonil | 131341-86-1 |
| Hexythiazox | 78587-05-0 |
| Imazalil | 35554-44-0 |
| Imidacloprid | 138261-41-3 |
| Kresoxim-methyl | 143390-89-0 |
| Malathion | 121-75-5 |
| Metalaxyl | 57837-19-1 |
| Methiocarb | 2032-65-7 |
| Methomyl | 16752-77-5 |
| Methyl parathion | 298-00-0 |
| MGK-264 | 113-48-4 |
| Myclobutanil | 88671-89-0 |
| Naled | 300-76-5 |
| Oxamyl | 23135-22-0 |
| Paclobutrazol | 76738-62-0 |
| Permethrins (total of cis- and trans-permethrin isomers)^{1} | 52645-53-1 |
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| Phosmet | 732-11-6 |
| --- | --- |
| Piperonyl butoxide | 51-03-6 |
| Prallethrin | 23031-36-9 |
| Propiconazole | 60207-90-1 |
| Propoxur | 114-26-1 |
| Pyrethrins (total of pyrethrin 1, cinerin 1, and jasmolin 1)^{2} | 8003-34-7 |
| Pyridaben | 96489-71-3 |
| Spinosad | 168316-95-8 |
| Spiromesifen | 283594-90-1 |
| Spirotetramat | 203313-25-1 |
| Tebuconazole | 80443-41-0 |
| Thiacloprid | 111988-49-9 |
| Thiamethoxam | 153719-23-4 |
| Trifloxystrobin | 141517-21-7 |
Notes to Table 2:
1. Permethrins should be measured as cumulative residue of cis- and trans-permethrin isomers (CAS numbers 54774-45-7 and 51877-74-8, respectively).
2. Pyrethrins should be measured as the cumulative residues of pyrethrin 1, cinerin 1, and jasmolin 1 (CAS numbers 121-21-1, 25402-06-6, and 4466-14-2, respectively).
(3) Solvents listed in Table 3, provided that the limits for ethanol and isopropyl alcohol do not apply to manufactured hemp products intended for topical application to the skin or hair;
Table 3
| Solvent | Chemical Abstracts Service Registry Number (CAS No.) | Limit (parts per million) |
| --- | --- | --- |
| 1,1-Dichloroethene | 75-35-4 | 8.0 ppm |
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| 1,1,1-Trichloroethane | 71-55-6 | 1,500 ppm |
| --- | --- | --- |
| 1,2-Dichloroethane | 107-06-2 | 1.0 ppm |
| Acetone | 67-64-1 | 5000 ppm |
| Acetonitrile | 75-05-8 | 410 ppm |
| Benzene | 71-43-2 | 1.0 ppm |
| Butane | 106-97-8 | 5,000 ppm |
| Carbon tetrachloride | 56-23-5 | 4.0 ppm |
| Chloroform | 67-66-3 | 1.0 ppm |
| Ethanol | 64-17-5 | 5,000 ppm |
| Ethyl acetate | 141-78-6 | 5000 ppm |
| Ethyl ether | 60-29-7 | 5000 ppm |
| Heptane | 142-82-5 | 5,000 ppm |
| Hexane | 110-54-3 | 290 ppm |
| Isopropyl alcohol | 67-63-0 | 5000 ppm |
| Methanol | 67-56-1 | 3000 ppm |
| Methylene chloride | 75-09-2 | 1.0 ppm |
| Pentane | 109-66-0 | 5,000 ppm |
| Propane | 74-98-6 | 5000 ppm |
| Toluene | 108-88-3 | 890 ppm |
| Total xylenes (ortho-, meta-, para-) | 1330-20-7 | 2,170 ppm |
| Trichloroethylene | 79-01-6 | 1.0 ppm |
(4) The following microbial contaminants, which must not be detected in one gram of manufactured hemp product:
(A) Escherichia coli;
(B) Salmonella spp.;
(C) Aspergillus fumigatus;
(D) Aspergillus flavus;
(E) Aspergillus niger; and
(F) Aspergillus terreus; and
(5) Mycotoxins listed in Table 4.
Table 4
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| Mycotoxin | Limit (parts per billion) |
| --- | --- |
| Aflatoxins (total of B1, B2, G1, G2) | 20 ppb |
| Ochratoxin A | 20 ppb |
(c) A representative sample of every batch of packaged crude extract shall be tested for contamination by a laboratory meeting the requirements of section 11-37-20, including the use of appropriate methods to quantify the presence of all contaminants listed in subsection (d).
(d) A sample and the associated batch of crude extract is considered adulterated if laboratory results for the testing required in subsection (c) exceed the specified concentration limit for any of the following contaminants: mycotoxins listed in Table 4 in subsection (b)(5). [Eff 8/9/21; am and comp 2/24/22; am and comp 4/29/22; am and comp 12/6/24; comp JAN 28 2026 ] (Auth: HRS §§328G-4, 328G-5) (Imp: HRS §§328G-4, 328G-5)