Developed by an accredited crane operator testing organization (see paragraph (b) of this section); or
Approved by an auditor in accordance with the following requirements:
The auditor is certified to evaluate such tests by an accredited crane operator testing organization (see paragraph (b) of this section).
The approval must be based on the auditor's determination that the written and practical tests meet nationally recognized test development criteria and are valid and reliable in assessing the operator applicants regarding, at a minimum, the knowledge and skills listed in paragraphs (j)(1) and (2) of this section.
The audit must be conducted in accordance with nationally recognized auditing standards.