Oregon Revised Statutes Public Health and Safety § 459A.575

The Environmental Quality Commission shall adopt rules, in accordance with the provisions of ORS 468.020, requiring sellers of more than 500 gallons of lubrication or other oil annually, in containers for use off the premises, to post and maintain at or near the point of sale durable and legible signs, unless otherwise prohibited by law, informing the public of the importance of proper collection and disposal of used oil, and how and where used oil may be properly disposed of, including locations and hours of operation of conveniently located collection facilities.