Step 1: Understanding Special Conditions of Contract (SCC).
- SCC are supplementary clauses to the General Conditions of Contract (GCC).
- They address unique project requirements, particularly financial, mobilization, and site-specific stipulations.
Step 2: Evaluating Options.
- (A) Scope and performance of work → covered by a general clause in GCC.
- (B) Site mobilization advance → specifically addressed in SCC due to its project-specific nature and variability.
- (C) Labour regulation → typically falls under labor laws and compliance, not SCC-specific.
- (D) Arbitration and law → generally found in GCC.
Step 3: Determination.
Consequently, site mobilization advance is the correct criterion found in SCC. \[\boxed{\text{Site mobilization advance}}\]