Why some sites verify and others do not
Verification requirements usually reflect what is on the site rather than the size of the operation. Facilities handling controlled goods, sites with defence or government-related activity, and premises where theft or interference would have consequences beyond the commercial all tend to apply them. Neighbouring units in the same estate may have entirely different regimes, which surprises contractors who expect the requirement to follow the industry.
The requirement also tends to be per individual and non-transferable, which is the part with the biggest operational consequence. A site that verifies individuals cannot be covered by whoever is available, and a contractor who has not planned for that will either miss shifts or ask the site for exceptions. Both outcomes are avoidable by establishing the requirement before the contract is agreed rather than during mobilisation.
