Scrutinising in FIDIC Yellow Book 1999 and Silver Book 1999 means that the Contractor must ask the Employer to check the Employer's Requirements very well to see if the Works can be built on that location according to the Employer's Requirements.

Scrutinising in FIDIC Silver Book 1999 means that the Contractor should read the Employer's Requirements very thoroughly after the contract closes and see if the Employer's Requirements is complete or if something is missing.

Scrutinising in FIDIC Yellow Book 1999 means the same as in FIDIC Silver Book 1999. In both models it means that after the contract closes and before starting the actual making of the design, the Contractor has to read the Employer's Requirements very thoroughly and check on any errors, omissions or conflicts.

Scrutinising in FIDIC Yellow Book 1999 means that the Contractor has the opportunity after contract close to report on any errors, mistakes or conflicts in the Employer's Requirements. In the FIDIC Silver Book 1999 scrutinising provides that obligation during the tender period; Contractor has the opportunity to report on any errors, mistakes or conflicts in the Employer's Requirements and for Employer to change it; for after contract closes