** Acetylene cylinders are filled by weight, not volume. The volume and pressure data shown is only illustrative and is subject to change from region to region, and may vary with changes in atmospheric temperature and pressure.
The Oregon Revised Statutes are the codified laws of the State of Oregon. The ORS is published every two years. Each edition incorporates all laws, and changes to laws, enacted by the Legislative Assembly through the odd-numbered year regular session referenced in the volume titles for that edition.
The Oregon Medical Marijuana Act was passed by Oregon voters on November 3, 1998, and went into effect on December 3, 1998. The Oregon Health Services was given the responsibility of developing a registration system for patients and caregivers by May 1, 1999. On May 21, 1999, the first registration cards were issued.