(A) Cannabis manufacturing shall only be permitted pursuant to § 6-5.01 of this chapter or any subsequent created manufacturing state license as defined in MAUCRSA and may be permitted to operate only within those zone districts as defined in the city's Municipal Code.
(B) Any compressed gases used in the manufacturing process shall not be stored on any property within the city in containers that exceeds the amount which is approved by the Madera Fire Department and authorized by the regulatory permit. Each site or parcel subject to a cannabis business permit shall be limited to a total number of tanks as authorized by the Madera Fire Department on the property at any time.
(C) Cannabis manufacturing facilities may use heat, screens, presses, steam distillation, ice water, ethanol, 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.
(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 division (F) of this section. The CO2 must be of at least 99% 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, or by a certified industrial hygienist, must be provided to the Community Development Department for a professional grade closed loop system used by any 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 or industrial hygienist and serial number of the extraction unit being certified.
(H) Professional closed loop systems, other equipment used, the extraction operation, and facilities must be approved for their use by the Fire Department and meet any required fire, safety, and building code requirements specified in the California Building Reference Codes.
(I) 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.
(J) 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.
(K) 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 to handle, and store the solvents and gases safely.
(L) Parts per million for one gram of finished extract cannot exceed state standards for any residual solvent or gas when quality assurance tested.
(Ord. 977 C.S., passed 6-16-21)