Each of the units has a Hired Equipment Coordinator that is responsible for those suppliers that have services that comply with The Supplier Participation Manual(SPM). And have a physical presence in that unit. Nowhere in the SPM are “crews” or “engines” even addressed or part of HE. The 10,000 handbook has language prohibiting the use if pvt equipment using HE methods and rates.
The 8100 & 10000 handbooks go into greater depth on the ordering and use of HE.
The hiring and use of HE is governed by the 8100 with the roles and responsibilities of the “Supplier” spelled out in the SPM. The SPM is part of the 10,000 handbook.
The FS hires PVT engines and crews and CF hires FS resources thru ABH, or CFMA. This is no different than how CF hires LG resources in California. Either ABH or CFAA. Now when it comes to out if state resources. Those resources are ordered unit to adjoining agency(ABH) OCC(NoOps, SoOps) to NIFC(NICC) Sac ECC to 1 of the 6 states in the 7 state compact, or Cal-OES through the EMAC which is “State to State” with all 50 governors part of the EMAC.
Again, all if this is spelled out in the 8100 handbook.
Lastly, keep in mind when equipment is ordered “Mutual Aid” depending on the method used. There is an appropriate “administration fee” applied to cover the costs of overhead to administer each program. This is admin fee is no different than CF charges LG that contract for services using Amador or Schedule A contracts.