It's not at all clear that similar constraints would apply when data collected by government are held by private interests.
Similar constraints applied in Afghanistan, where even dirt roads were spared attack.
The same constraints apply to the help desks run by software makers to take questions about their products.
No such formal constraints apply to the ethics panel.
The same constraints apply to acts of the Scottish Executive.
The usual constraints of no repeated value in any row, column or region apply.
In other countries the boards are simply collected from a central table and this constraint does not apply.
Additional constraints may apply, depending on the game system.
By the way, these constraints do not apply to the motions of electrons around atomic nuclei.
Similar constraints now apply to former executive branch officers.