Or. Admin. Code § 340-250-0110
The federal conformity rules under 40 CFR Part 51, Subpart W (July 1, 1994), in addition to any existing applicable state requirements, establish the conformity criteria and procedures necessary to meet the requirements of CAA Section 176(c) until such time as this division are approved by EPA. Following EPA approval of these rules, the state criteria and procedures in this division would govern conformity determinations. In addition, any previously applicable SIP requirements relating to conformity remain enforceable until the state revises its applicable implementation plan to specifically remove them, and that revision is approved by EPA.
[NOTE: This rule is included in the State of Oregon Clean Air Act Implementation Plan as Adopted by the Environmental Quality Commission under OAR 340-200-0040.]
Or. Admin. Code § 340-250-0110
Stat. Auth.: ORS 468.020 & ORS 468A.035
Stats. Implemented: ORS 468A.035