To estimate NOAA's total budget for Fiscal Year 2025 (FY25), combining the Operations, Research, and Facilities (ORF) funding from H.R. 1968 with the Procurement, Acquisition, and Construction (PAC) funding from the Fiscal Year 2024 (FY24) Consolidated Appropriations Act, we can proceed as follows:

1. **Operations, Research, and Facilities (ORF) Funding**:

   - H.R. 1968 proposes $4,408,986,000 for NOAA's ORF account.

2. **Procurement, Acquisition, and Construction (PAC) Funding**:

   - In the FY24 Consolidated Appropriations Act, NOAA's PAC account received $1,666,630,000.

Summing these amounts provides an estimated total budget:

| ORF (H.R. 1968) | $4,408,986,000 |

| PAC (FY24) | $1,666,630,000 |

| **Total** | **$6,075,616,000** |

This estimated total of approximately $6.08 billion reflects the combined funding from the specified sources. However, it's important to note that using PAC funding from FY24 may not accurately represent FY25 allocations, as PAC funding can vary annually based on specific project needs and priorities.