Engineering Controls

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Methods of controlling employee exposures by modifying the source or reducing the quantity of contaminants released into the work environment.

Closed Systems

• Evaluation of closed systems, PDF (HS-1849, 2003 report)
• 2022 Suppliers, PDF

For companies/individuals seeking guidance on manufacturing their own non-commercial system, the following links provide such information:

Overview of Closed Systems Component and User Designs, PDF

Closed System Operation Instructions V1.0-2, PDF

Guidelines for Developing and Manufacturing a Closed System Compliant with the Requirements of Title 3 California Code of Regulations, PDF

Enclosed Cabs

• Advisory on maintenance, PDF (August 2002)
• Suppliers, PDF (January 2011)

Pesticide Safety Information Series - handouts on closed systems, enclosed cabs, water-soluble packaging

• Agricultural settings A-3, PDF
• Non-agricultural settings N-3, PDF

For content questions, contact:
Christopher D. Stonum
3077 Fite Circle Sacramento, CA 95827
(916) 603-7813
E-mail: Christopher.stonum@cdpr.ca.gov