Notice clauses are easy to skim because they look procedural. In practice, they can decide whether a subcontractor preserves a request for time or money after a change, delay, differing condition, acceleration, suspension, or other impact.
Federal prime contracts contain their own notice structures, and primes often shorten downstream deadlines so they have time to investigate and submit their own notice. The subcontractor should know those deadlines before field events begin.
Prime-contract deadlines can be specific
For example, FAR 52.243-1 states that a contractor must assert its right to an adjustment under that Changes clause within 30 days after receipt of the written order, subject to the clause's qualification. Other clauses use different notice triggers and timing.
Construction Changes at FAR 52.243-4 also requires written notice for certain directions treated as change orders. These are prime-contract examples, not automatic subcontract deadlines, but they explain why a prime may demand earlier notice from lower tiers.
Official source: FAR 52.243-1 — Changes—Fixed-Price.
Find every notice rule, not just the Changes section
- Changes and extra work.
- Delay, disruption, suspension, and acceleration.
- Differing site conditions.
- Claims and requests for equitable adjustment.
- Payment disputes and backcharges.
- Default or cure responses.
- Termination settlement costs.
- Insurance claims, indemnity events, and third-party claims.
Check the trigger and delivery method
A deadline may run from the event, from discovery, from receipt of direction, or from when the subcontractor should have known of the condition. The agreement may also require notice to a named contracts manager rather than the project manager who gave the direction.
A good internal process records the event date, contractual deadline, required recipient, delivery method, and supporting documents immediately.
Do not rely on a verbal heads-up
Telling a superintendent or program manager about a problem may be operationally useful but may not satisfy a written contractual notice requirement. When the contract calls for formal notice, follow the required method while continuing normal project communication.