Oregon Revised Statutes Revenue and Taxation § 316.198

(1) An employer required to make a combined quarterly tax and assessment payment under ORS 316.168 shall make the payment by means of electronic funds transfer if the employer is required to make federal payroll tax payments electronically.

(2) The Department of Revenue may adopt rules that provide exemptions from the requirement that combined quarterly tax and assessment payments be paid by electronic funds transfer when the taxpayer is disadvantaged by required payment by electronic funds transfer.

(3) The Department of Revenue may accept electronically filed payments voluntarily submitted by an employer who is not required to pay by means of electronic funds transfer.

(4) As used in this section, the term “electronic funds transfer” has the meaning given that term in ORS 293.525.