Oregon Revised Statutes Revenue and Taxation § 310.238

(1) In order to ensure that the consolidated rates for each code area do not exceed the $5 per $1,000 of real market value limit for the public school system and $10 per $1,000 of real market value limit for other government operations that is guaranteed in section 11 (11) and 11b, Article XI of the Oregon Constitution, the assessor shall, for each code area, convert the constitutional rate limit for each category into a rate per $1,000 of assessed value by multiplying the applicable rate limit by a fraction, the numerator of which is the code area market value and the denominator of which is the code area assessed value.

(2) The assessor shall add the rates determined under subsection (1) of this section and the consolidated rate under ORS 310.236 for the exempt bonded indebtedness category. The total shall be the Measure 5 assessed value rate.