Oregon Statutes > Chapter 309 > Sales Ratio Studies and Department of Revenue Review Oregon Statutes > Chapter 309 > Sales Ratio Studies and Department of Revenue Review Current as of: 2023 | Check for updates | Other versions § 309.200 Assessor to collect sales data and prepare ratio study; filing study with department and board § 309.203 Real market value standard; compliance; recommendations or orders by department; examination of ratio study; action if standard in jeopardy Ask a question, get an answer ASAP!