Indoor Air Quality in Buildings and Facilities Utilized for the Cultivation, Production and Processing of Cannabis

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Standards Development Organisation:
Contact Information:
Working Program:
Designation Number:
ANSI/CAN/UL/ULC 4402
Standard Type:
National Standard of Canada - Domestic
Standard Development Activity:
Amendment Revision
ICS code(s):
13.040.30
Status:
Proceeding to development
SDO Comment Period Start Date:
SDO Comment Period End Date:
Posted On:

Scope:

Scope

1.1  This Standard provides minimum indoor air quality (IAQ) requirements and guidelines for a building or portions of a building utilized for cannabis cultivation, post-harvest processing as well as ancillary spaces.

Note: For the purposes of this Standard, ancillary spaces include areas that support the general operations required to run a cannabis facility. Examples include but are not limited to: Corridors, HVAC/Mechanical Rooms and Electrical Rooms.

1.2  This Standard recognizes the issues surrounding lead paint and asbestos in the built environment. Due to differing legal restrictions and licensure requirements, these materials are beyond the scope of this standard. It is the responsibility of the building owner and/or operator to assure compliance with all regulations applicable within the jurisdiction.

1.3  This Standard does not address: fumigation and insecticidal fogging, ozone generating air cleaning devices, ultraviolet germicidal irradiation (UVGI) exposure from air cleaning devices, nor exposure limits for hydrofluoroalkane (HFA-134a).

1.4  This Standard does not address cannabis related biogenic volatile organic compounds (BVOCs). These BVOCs include thiols (also called volatile sulfur compounds, or VSCs) as part of their natural biological cycles. The VOCs emitted by cannabis include terpenes with main constituents as isoprene, monoterpenes and sesquiterpenes. These terpenes are odorants with extremely low odor thresholds. At the time of this publication, the STP is not aware of any evidence that suggests health hazards are related to cannabis BVOC emissions at the typically observed concentrations.

1.5  This Standard does not include provisions for greenhouses.

Project need:

Project Need
The intent of this project is to revise some errors that were found in the standard, as well as to make some updates to ensure that the information provided in our standard is not outdated. These proposed changes include the adjustment of NO2 limit, update to WHO AQGs reference, including a reference to ASABE/ASHRAE EP653, adding a definition to CO2 generators, and some typo corrections of chemical names.

Note: The information provided above was obtained by the Standards Council of Canada (SCC) and is provided as part of a centralized, transparent notification system for new standards development. The system allows SCC-accredited Standards Development Organizations (SDOs), and members of the public, to be informed of new work in Canadian standards development, and allows SCC-accredited SDOs to identify and resolve potential duplication of standards and effort.

Individual SDOs are responsible for the content and accuracy of the information presented here. The text is presented in the language in which it was provided to SCC.