Negotiated Indirect Cost Rate Agreements (NICRA) establish the reimbursement rates negotiated between the federal government and grantees for indirect costs incurred in federal programs. These agreements categorize rates into provisional, final, predetermined, and fixed, each with specific applications and requirements for reporting and claiming costs. The guidance mandates federal agencies to reimburse nonprofits based on their negotiated rates or allows them to request a rate if none exists, streamlining the funding process for federal grants.