** 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.
Oregon was inhabited by many indigenous tribes before Western traders, explorers, and settlers arrived. An autonomous government was formed in the Oregon Country in 1843, the Oregon Territory was created in 1848, and Oregon became the 33rd state on February 14, 1859. Today, Oregon is the ninth largest and 27th most populous U.S. state. The capital of Oregon is Salem, the second most populous of its cities, with 160,614 residents (2013 estimate).