Under what condition can evidence not be obtained from a federal records custodian without exclusion from the FDC program?

Evidence cannot be obtained from a federal records custodian without exclusion from the FDC program when the claimant is unreachable at the time of action. The FDC program relies on the ability to communicate effectively with claimants to ensure that all necessary information and evidence are gathered promptly for processing their claims. If a claimant cannot be reached, there may be a gap in the information required to make a decision on the claim, which can hinder the process.

The condition of being unable to reach the claimant directly impacts the efficacy of the program because the FDC's goal is to expedite the claims process by handling everything in a timely manner. When a claimant is unreachable, it can lead to delays and complications, which is why this specific condition is significant enough to warrant exclusion from the program.

Other scenarios, such as needing to call a claimant or processing claims more quickly, do not directly affect the accessibility of evidence from a custodian. Similarly, while a claim being considered urgent might suggest an imperative need for prompt action, it does not inherently change the requirement for claimant communication regarding evidence. The crux of the matter lies in the ability to contact the claimant for necessary information or clarification, which is hindered when the claimant is unreachable.