817 Steel Erection Safety

In girt and eave strut-to-frame connections, when girts or eave struts share common connection holes:

At least one bolt must remain securely in place for the connection of the first member.
A field-attached seat or similar connection device supplied by the manufacturer may be used in lieu of the bolt to secure the first member so that the girt or eave strut is always secured against displacement.
Both ends of all cold-formed or steel joists must be fully bolted/welded to the support structure before:

Purlins and girts are prohibited from:

Being used as an anchorage point for a fall-arrest system, unless written approval is obtained from a qualified person.
Being used as a walking/working surface when installing safety systems, until:

4-2. What must occur prior to allowing workers to walk on purlins and girts?

Purlins must be surveyed by the project engineer or record

All permanent bridging must be installed and fall protection provided

OSHA must first inspect all connections to ensure field-bolting

At least two field-bolts must be fastened at each end of all purlins

You forgot to answer the question!