A contractual holdback clause, not a CCA requirement — the statutory retention-money trust regime (CCA s18B) only applies to commercial contracts where neither party is a residential occupier, which excludes every job here. Leave blank if this contract has no retention clause.
Drives provincial-anniversary-day exclusion in statutory deadline calculations. Leave unset if unsure — deadlines will be flagged as not accounting for a regional anniversary day rather than silently guessing.