Many agencies will allow a one-time, no-cost time extension of up to 12 months if the PI is unable to complete the original scope of the project within the designated timeframe outlined in the grant award. Normally, agencies require a formal, written request that includes a detailed justification for the requested extension, a plan for completion of the work and an estimate of unexpended funds. Requests should be made well in advance of the grant expiration date and should be signed and dated by both the PI and the director of Grants and Contracts. Pls should consult agency guidelines for detailed instructions for no-cost time extension requests.