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Hazardous Substance Regulations

The Oregon Community Right to Know and Protection Act requires emergency service personnel who respond to an incident involving hazardous materials to file an incident report with the OSFM. The report must be received within 10 working days of the incident. For more information, please refer to the OSFM incident reporting policy.

Extremely Hazardous Substances (EHS)

These substances are regulated by the Environmental Protection Agency (EPA). Facilities that possess a threshold planning quantity (TPQ) of an EHS are subject to federal emergency planning requirements. TPQs are calculated based on the aggregate amount of an EHS substance at the facility at one time. Facilities in Oregon are required to identify whether or not they are subject to these requirements on the Oregon hazardous substance inventory report.

More information about EHS:
EPA RCRA/Superfund/EPCRA Hotline:  800.424.9346 (M – F, 10 a.m. – 3 p.m. ET)
EPA’s EPCRA website
EHS Chemical List 

OSHA Hazard Classifications

Federal law requires facilities to identify physical and health hazard classifications adopted by Occupational Safety and Health Administration’s (OSHA) Hazard Communication Standard. Facilities will report the hazard classifications for each reported hazardous substance as listed on the SDS. These classifications will be identified by the CHS manager and facilities will check the appropriate classification(s). These will include explosive, radioactive, poisonous, and etiologic classifications which, if selected, will prevent the disclosure of the substance to the public. 
Statutes and Rules

Oregon Revised Statutes (ORS) 453.307 to 453.505
Oregon Administrative Rules (OAR) Chapter 837, Division 85
Oregon Administrative Rules (OAR) Chapter 837, Division 90


Hazardous Substance Hotlines
503-378-6835 or 800-454-6125


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