30 CFR §43.5

1. (a)As soon as possible after the receipt of a notice of alleged violation or imminent danger under this subpart, the Secretary or his authorized representative shall make a special inspection to determine if a citation or withdrawal order should be issued, unless on the face of the notice, the condition complained of, even if it were found to exist, would clearly not constitute a violation or imminent danger.
2. (b)Where the Secretary or his authorized representative makes a special inspection under this subpart and finds a violation or imminent danger, a citation or withdrawal order, as appropriate, shall be issued.