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Summary of Klamath Falls PM-10 Attainment Plan


The area within the Klamath Falls Urban Growth Boundary (UGB) was designated nonattainment for PM10 and classified as moderate upon enactment of the Clean Air Act Amendments in 1990.

Oregon submitted a PM10 attainment plan on November 15, 1991, and September 22, 1995 and EPA proposed the plan on June 5, 1996 (61 FR 28531 (PDF)(11 pp, 227 K, About PDF)).

On April 14, 1997, EPA approved the Klamath Falls PM10 attainment plan (62 FR 18047 (PDF)(7 pp, 150 K)).

On November 5, 1999, Oregon submitted a complete rule renumbering and relabeling package to EPA for approval in the SIP. On January 22, 2003, EPA approved the recodified version of Oregon's rules to remove and replace the outdated numbering system (68 FR 2891 (PDF)(19 pp, 204 K)). The following list refers to the currently approved SIP rules.


The plan relies on control strategies needed to assure attainment of the PM10 National Ambient Air Quality Standards (NAAQS). The strategy focuses on control of residential wood combustion, fugitive dust and open burning emissions. Other strategies include stringent management of future growth in industrial emissions. 


  • OAR 340-262-0030 to 0040 - Ban on Used Woodstove Sale
  • OAR 340-262-0100 to 0130 - Woodstove Certification Program
  • OAR 340-020-225 - Repealed for Klamath Falls January 22, 2003 (68 FR 2891)

Interagency Commitments

  • Woodstove Replacement and Home Weatherization Program (1990-1993)
  • Letter of agreement from ODOT, Winter Road Sanding Control Program, December 11, 1989

Klamath County and City Ordinances

  • Klamath County Clean Air Ordinance 63, adopted July 31, 1991
  • City of Klamath Falls Ordinance 6630, adopted September 16, 1991

Contingency Measures

  • OAR 340-262-0200 to 0250 - Mandatory Curtailment Authority
  • OAR 340-262-0300 to 0330 - Woodstove Removal on Home Sale
  • OAR 340-21-200 to 245 - Industrial contingency requirement for PM10 nonattainment areas

EPA Effective Date

April 14, 1997