(1)The employer must not assign workers to a task or location so isolated as to be without visual, audible, or radio contact with another person who can summon or provide aid in an emergency.
(2)Unless otherwise specified in division 7, in any operations where fire suppression, prescribed fire, tree climbing, power chain saw operation, yarding, loading or a combination of these duties is carried on, there must be a minimum crew of two employees who must work as a team and must be in visual or natural unassisted voice communication with one another.
(3)Workers are not prohibited from working alone when performing certain jobs which by their nature may be single employee assignments, such as: mechanics, watchers, the operation of motor vehicles, self-loading log trucks, mechanized logging machines, feller bunchers, forwarders, processors, harvesters or excavator-based machines, provided the employer complies with the requirements of 437-007-0210 (Checking System)(2), Checking System; 437-007-0775 (Protective Structure For Operators, Machines Manufactured On Or After July 1, 2004), Protective Structures for Operators; and 437-007-0220 (Medical Services and First Aid), Medical Services and First Aid.
(4)Mechanics or other employees must not be assigned to work on machines by themselves when there is a probability of a fall from elevated work locations or machines. When the work is of such nature that heavy parts require moving, or there is a probability that anything heavy could fall on the person, there must be another person in the area who can render immediate assistance or emergency care.
Rule 437-007-0215 — Working Alone,