Oregon Revised Statutes Financial Institutions § 716.460

A savings bank may invest the funds mentioned in ORS 716.410 in promissory notes made payable on demand to the order of the savings bank, secured by the pledge and assignment of a time or savings account or any other kind of deposit account, including but not limited to an automatic savings to checking transfer account or a negotiable order of withdrawal account, if the account is fully or partially federally insured as collateral security for the payment of the notes. The loan shall not exceed 100 percent of the balance due the owner of the time or savings account.