Final answer:
A power-operated suspension scaffold must be tested by a competent person, as defined by OSHA standards, who has the skills, knowledge, and authority to identify and correct hazards.
Step-by-step explanation:
A power-operated suspension scaffold needs to be tested by a competent person. According to OSHA standards, a competent person is someone who is capable of identifying existing and predictable hazards in the surroundings or working conditions which are unsanitary, hazardous, or dangerous to employees, and who has authorization to take prompt corrective measures to eliminate them. By definition, a competent person should have the necessary skills, knowledge, and authority to ensure that the scaffold is properly inspected and is safe for use.