An official website of the State of Oregon
How you know »
(how to identify a Oregon.gov website)
An official website of the State of Oregon »
You are here:
Every two years, the state of Oregon completes the Highway Cost Allocation Study (HCAS). This study is the main instrument used during legislative sessions to determine changes in weight-mile and fuel taxes and vehicle registration fees. The Office of Economic Analysis manages this study.
Study Review Team
A .gov website belongs to an official government organization in the United States.
A lock icon ( ) or https:// means you’ve safely connected to the .gov website.
Only share sensitive information on official, secure websites.
Your browser is out-of-date! It has known security flaws and may not display all features of this and other websites. Learn how