5.10.400 Cannabis manufacturing—Edibles and other cannabis products—Sale or distribution of edible and other cannabis products.

(A) Cannabis manufacturing facilities requiring a Type-6, Type-7, Type S, or any subsequent created manufacturing state license (using non-volatile and volatile solvents) as defined in MAUCRSA, may be permitted to operate within those zoning districts as defined in Title 19 of this code.

(B) Any compressed gases used in the manufacturing process shall not be stored on any property within the city of American Canyon in containers that exceeds the amount, which is approved by the American Canyon fire protection district and authorized by the regulatory permit. Each site or parcel subject to a commercial cannabis business permit shall be limited to a total number of tanks as authorized by the American Canyon fire protection district on the property at any time.

(C) Cannabis manufacturing facilities may use the hydrocarbons N-butane, isobutane, ethanol, propane, or heptane or other solvents or gases exhibiting low to minimal potential human-related toxicity approved by the community development department. These solvents must be of at least ninety-nine percent purity and any extraction process must use them in a professional grade closed loop extraction system designed to recover the solvents and work in an environment with proper ventilation, controlling all sources of ignition where a flammable atmosphere is or may be present.

(D) If an extraction process uses a professional grade closed loop CO₂ gas extraction system, every vessel must be certified by the manufacturer for its safe use as referenced in Section 5.10.360. The CO₂ must be of at least ninety-nine percent purity.

(E) Closed loop systems for compressed gas extraction systems must be commercially manufactured and bear a permanently affixed and visible serial number.

(F) Certification from an engineer licensed by the state of California must be provided to the community development department for a professional grade closed loop system used by any commercial cannabis manufacturing manufacturer to certify that the system was commercially manufactured, is safe for its intended use, and was built to codes of recognized and generally accepted good engineering practices, including, but not limited to:

(1) The American Society of Mechanical Engineers (ASME);

(2) American National Standards Institute (ANSI);

(3) Underwriters Laboratories (UL); or

(4) The American Society for Testing and Materials (ASTM).

(G) The certification document must contain the signature and stamp of the professional engineer and serial number of the certified extraction unit.

(H) Professional closed loop systems, other equipment used, the extraction operation, and facilities must be approved for their use by the building official and the American Canyon fire protection district and meet any required fire, safety, and building code requirements specified in the California Building Reference Codes.

(I) Cannabis manufacturing facilities may use heat, screens, presses, steam distillation, ice water, and other methods without employing solvents or gases to create keef, hashish, bubble hash, or infused dairy butter, or oils or fats derived from natural sources, and other extracts.

(J) Cannabis manufacturing facilities may use food grade glycerin, ethanol, and propylene glycol solvents to create or refine extracts. Ethanol should be removed from the extract in a manner to recapture the solvent and ensure that it is not vented into the atmosphere.

(K) Cannabis manufacturing facilities creating cannabis extracts must develop standard operating procedures, good manufacturing practices, and a training plan prior to producing extracts for the marketplace.

(L) Any person using solvents or gases in a closed looped system to create cannabis extracts must be fully trained on how to use the system, have direct access to applicable material safety data sheets, and handle and store the solvents and gases safely.

(M) Parts per million for one gram of finished extract cannot exceed state standards for any residual solvent or gas when quality assurance tested.