Cal. Code Regs. Tit. 4, § 15718 - Residual Solvents and Processing Chemicals Testing
(a)
The licensed laboratory shall analyze at minimum 0.25 grams of the
representative sample of cannabis product or pre-rolls to determine whether
residual solvents or processing chemicals are present.
(b) The licensed laboratory shall report the
result of the residual solvents and processing chemicals testing in unit
micrograms per gram (µg/g) on the COA and indicate "pass" or "fail" on the
COA.
(c) The sample shall be deemed
to have passed the residual solvents and processing chemicals testing if the
presence of any residual solvent or processing chemical listed in the following
tables in Category I and Category II does not exceed the indicated action
levels.
(1) Notwithstanding subsection (c),
the limit for ethanol does not apply to cannabis products that are
tinctures.
(2) Notwithstanding
subsection (c), the limit for ethanol or isopropyl alcohol does not apply to
cannabis products that are topical cannabis products.
| Category I Residual Solvent or Processing Chemical | CAS No. | Cannabis Product or Pre-Roll Action Level (µg/g) |
| 1,2-Dichloroethane | 107-06-2 | 1.0 |
| Benzene | 71-43-2 | 1.0 |
| Chloroform | 67-66-3 | 1.0 |
| Ethylene oxide | 75-21-8 | 1.0 |
| Methylene chloride | 75-09-2 | 1.0 |
| Trichloroethylene | 79-01-6 | 1.0 |
| Category II Residual Solvent or Processing Chemical | CAS No. | Cannabis Product or Pre-roll Action Level (µg/g) |
| Acetone | 67-64-1 | 5000 |
| Acetonitrile | 75-05-8 | 410 |
| Butane | 106-97-8 | 5000 |
| Ethanol | 64-17-5 | 5000 |
| Ethyl acetate | 141-78-6 | 5000 |
| Ethyl ether | 60-29-7 | 5000 |
| Heptane | 142-82-5 | 5000 |
| Hexane | 110-54-3 | 290 |
| Isopropyl alcohol | 67-63-0 | 5000 |
| Methanol | 67-56-1 | 3000 |
| Pentane | 109-66-0 | 5000 |
| Propane | 74-98-6 | 5000 |
| Toluene | 108-88-3 | 890 |
| Total xylenes (ortho-, meta-, para-) | 1330-20-7 | 2170 |
(d) If the sample fails residual solvents and
processing chemicals testing, the batch from which the sample was collected
fails residual solvents and processing chemicals testing and shall not be
released for retail sale.
Notes
2. Amendment of subsections (a)-(b) and (c)(1)-(2) filed 9-27-2021 as an emergency; operative 9-27-2021 (Register 2021, No. 40). This filing is a deemed emergency pursuant to Business and Professions Code sections 26013(b)(3) and 26153.1(k). A Certificate of Compliance must be transmitted to OAL by 3-28-2022 or emergency language will be repealed by operation of law on the following day.
3. Amendment of subsections (a)-(b) and (c)(1)-(2) refiled 3-28-2022 as an emergency; operative 3-28-2022 (Register 2022, No. 13). This filing is a deemed emergency pursuant to Business and Professions Code sections 26013(b)(3) and 26153.1(k). A Certificate of Compliance must be transmitted to OAL by 9-26-2022 or emergency language will be repealed by operation of law on the following day.
4. Certificate of Compliance as to 3-28-2022 order transmitted to OAL 9-26-2022 and filed 11-7-2022 (Register 2022, No. 45).
Note: Authority cited: Section 26013, Business and Professions Code. Reference: Sections 26100, 26104 and 26110, Business and Professions Code.
2. Amendment of subsections (a)-(b) and (c)(1)-(2) filed 9-27-2021 as an emergency; operative
3. Amendment of subsections (a)-(b) and (c)(1)-(2) refiled 3-28-2022 as an emergency; operative
4. Certificate of Compliance as to 3-28-2022 order transmitted to OAL 9-26-2022 and filed
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