WAC 296-806-45506
WAC 296-806-45506. Protect operators from guidepost hazards
You must use properly installed, adjusted, and maintained guards or devices to protect operators from the hazards created by:
(1) Guideposts separating from their bushings.
(2) Similar pinch points between the slide (moving die) and fixed die or press attachments.
EXEMPTION:
This requirement does not apply if the opening is one-fourth inch or less, before use.