8.3 DELAYS AND EXTENSIONS OF TIME
We have already considered this topic in Part I (Section 1.7) but it is probably
helpful to summarise here the main points of similarity and contrast between
the two Books.
If any of the circumstances listed under clause 8.4 of the Books occurs and
results in delay to completion of the works, the Contractor is entitled to an
extension of the time for completion subject to giving notice of claim under
clause 20.1.
In the Yellow Book the relevant delay events are:
●
a variation or other substantial change in the quantity of an item of work;
●
a cause of delay giving rise to an entitlement under another sub-clause;
●
exceptionally adverse climatic conditions;
●
unforeseeable shortages of personnel or goods caused by epidemic or gov-
ernmental actions;
●
any delay, impediment or prevention caused by or attributable to the
Employer, the Employer ’ s personnel or the Employer ’ s other contractors
on the site.
In the Silver Book, as we saw, only the first, second and last of these grounds
apply (variations, express mention in another clause of the contract or delays
attributable to the Employer).
Moreover, in the Silver Book general conditions, no additional time is per-
mitted for (a) unforeseeable physical conditions (whereas it is under clause