Responsibilities of attendant
262.04An attendant shall
(a)
be stationed at all times outside the point of entry to or exit from the confined space and continuously monitor work in and near the confined space,
(b)
be knowledgeable about the actual and potential hazards associated with entering a confined space,
(c)
maintain two-way communication with the entrant,
(d)
review the entry procedures prior to entry,
(i)
monitor conditions and changes that could adversely affect the health or safety of the entrant,
(ii)
ensure that the procedures to be followed and the equipment to be used in the event of an emergency are followed and used correctly, 
(iii)
recognize the signs and symptoms of illnesses, injuries and hazard exposures that can compromise the health or safety of the entrant,
(iv)
have a means for two-way communication with the entry supervisor and emergency response team leader, and
(v)
keep track of entrants entering and exiting the confined space.