WAC 296-54-527
Seat belts. Each machine equipped with
ROPS or FOPS and each vehicle (whether provided by the
employee or the employer) must meet the following
requirements:
(1) A seat belt must be provided for each vehicle,
vehicle occupant, and all machines equipped with ROPS.
Note:
An employer is not required to retrofit a vehicle that was not equipped with seat belts at the time of manufacture.
(2) Each employee must use the available seat belt while
the vehicle or machine is being operated.
(3) Each employee must securely and tightly fasten the
seat belt to restrain the employee within the vehicle or
machine cab.
(4) Each machine seat belt must meet the requirements of
the Society of Automotive Engineers Standard SAE J386, June
1985, "Operator Restraint Systems for Off-Road Work Machines."
Seat belts need not be provided for equipment that is
designed only for stand-up operations.
(5) Seat belts must not be removed from any vehicle or
machine. The employer must replace each seat belt that was
removed from any vehicle or machine that was equipped with
seat belts at the time of manufacture.
(6) Each seat belt must be maintained in a serviceable
condition.