§ 138.840 [1955 c.662 §5; 1959 c.558 §44; renumbered 138.440]

This citation doesn't contain actual rule text to summarize. What's shown is just the legislative history notes for a statute (showing when it was passed in 1955, amended in 1959, and later renumbered to a different section, 138.440).

To give you a useful summary, I'd need the actual text of the rule. Since this section was renumbered to ORS 138.440, you may want to look up that section instead, as it likely contains the current, active version of this rule.

If you can share the full text of the rule (either from 138.440 or elsewhere), I'll be happy to break it down in plain language for you.