What's the difference between a firm burden schedule and a provisional burden schedule?

Firm burden schedules are typically used for internal costing or commercial billing schedules. You can have multiple versions, but only one version for an effective date range. Use firm burden schedules if you expect no changes in your burden multipliers.

Provisional multipliers are typically estimates based on the annual forecast budget. When you determine the actual multipliers to apply to raw costs, then you replace the provisional multipliers with the actual multipliers. Use provisional multipliers if you don't know burden multipliers when calculating total burdened costs.

The adjustments are processed from provisional to actual changes for costing, revenue, and billing transactions.