In contract agreements, there are often deadlines that tell when a contractor must give notice of a claim. In many cases the deadline is only days after the incident and if the claim goes unreported, it will be waived.
In a guest post for CONSTRUCTION LAW MUSINGS, Tara L Chadbourn discusses the ways that contractors can makes sure their claims are not waived--including reviewing contract modifications:
...the contractor should expressly identify and exclude all unresolved issues between the parties, claims and potential claims in contract modifications in order to preserve such claims. If the owner or higher-tier contractor refuses to allow the express reservation, then the contractor can try to protect itself by expressly signing the modification under protest.
Head over to Construction Law Musings to learn more about the importance of preserving claims.