PDFWAC 296-307-70450
Use the buddy system in danger areas.
The employer must make sure operations and tasks (including limited actions) in danger areas are conducted using the buddy system in teams of two or more.
Definition. Danger areas are areas where conditions pose a serious danger to employees, such as areas where:
(a) Immediately dangerous to life or health (IDLH) conditions could exist.
or
(b) High levels of exposure to toxic substances could exist.
or
(c) There is a potential for exceeding the lower explosive limit (LEL), also known as the lower flammability limit (LFL) of a hazardous substance.