Yes, if the equipment and supplies are used for eligible emergency work. Pre-positioning outside the declared area is also eligible for search and rescue, evacuation, sheltering or emergency medical care during evacuation, if the resources were ultimately used for the declared area.
Labor for pre-positioning follows the force account labor rules in Chapter 6.
Records of what was staged, where and when, and how it was later used on eligible work.
Resources that were staged and never used are hard to claim. Document deployment, not just staging.